Quality assessment of HelioClim-3 version 4 and version 5 against 14 Baseline Surface Radiation Network (BSRN) stations

Last update: Nov. 2015

    Generalities - BSRN - Belgium - Brazil INMET - Brazil INPE

Protocol

Date & Authors: Nov. 2015

  • Dr Etienne Wey, Transvalor
  • Pr Lucien Wald, MINES ParisTech
  • Dr Philippe Blanc, MINES ParisTech
  • and Dr Claire Thomas, Transvalor

(A publication is on the way)

The HelioClim-3 radiation values are compared to the BSRN measurements following the protocol of validation described here on SoDa. The 1 min BSRN station measurements have been qualified using the quality check procedure available here. The validation results are available for the 15 min, hourly, daily and monthly time step, and for the Global Horizontal and the Direct Normal components.

Illustration: list of the BSRN stations used for the validation

 Recapitulative table of the stations (in decreasing latitudes):

Station Code Country Latitude Longitude Altitude (m) Period Source
Lerwick LER UK 60.133 -1.183 84 2004-02-01 to 2007-12-31 BSRN
Toravere TOR Estonia 58.254 26.462 70 2004-02-01 to 2014-12-31 BSRN
Lindenberg LIN Germany 52.210 14.122 125 2004-02-01 to 2007-12-31 BSRN
Cabauw CAB Netherlands 51.971 4.927 0 2005-01-01 to 2014-12-31 BSRN
Camborne CAM UK 50.217 -5.317 88 2004-02-01 to 2007-12-31 BSRN
Palaiseau PAL France 48.713 2.208 156 2004-02-01 to 2013-12-31 BSRN
Payerne PAY Switzerland 46.815 6.944 491 2004-02-01 to 2011-12-31 BSRN
Carpentras CAR France 44.083 5.059 100 2004-02-01 to 2014-12-31 BSRN
Cener CEN Spain 42.816 -1.601 471 2009-01-01 to 2013-12-31 BSRN
Sede Boqer SBO Israel 30.905 34.782 500 2004-02-01 to 2012-12-31 BSRN
Tamanrasset TAM Algeria 22.780 5.510 1385 2004-02-01 to 2014-12-31 BSRN
Brasilia BRB Brazil -15.601 -47.713 1023 2006-01-01 to 2013-12-31 BSRN
Sao Martinho da Serra SMS Brazil -29.443 -53.823 489 2006-01-01 to 2012-12-31 BSRN
De Aar DAA South Africa -30.667 23.993 1287 2004-02-01 to 2005-12-31 BSRN

VALIDATION RESULTS

Quality assessment results of GHI values

HelioClim-3 v4 and v5 -- GHI Quality assessment results vs. the BSRN stations
MONTHLY SUM OF 15 MIN IRRADIATION
Station Number of values Mean
- BSRN -
(kWh/m²)
Bias HC3v4
(kWh/m2)
(relative in %
)
Bias HC3v5
(kWh/m2)
(relative in %
)
RMSE HC3v4
(kWh/m2)
(relative in %
)
RMSE HC3v5
(kWh/m2)
(relative in %
)
Correl. coeff.
HC3v4
Correl. coeff.
HC3v5
Lerwick 29 81.2 2.8 (3.4%) 4.0 (4.9%) 7.7 (9.5%) 7.6 (9.3%) 0.995 0.997
Toravere 104 83.4 -2.0 (-2.4%) -3.2 (-3.8%) 7.8 (9.3%) 7.2 (8.6%) 0.989 0.992
Lindenberg 37 90.0 -4.2 (-4.7%) -3.9 (-4.3%) 6.5 (7.2%) 6.4 (7.1%) 0.996 0.997
Cabauw 112 87.9 -3.4 (-3.9%) -2.3 (-2.7%) 7.4 (8.4%) 6.2 (7.1%) 0.994 0.996
Camborne 41 93.5 -1.0 (-1.1%) 0.2 (0.2%) 3.3 (3.6%) 3.0 (3.2%) 0.999 0.999
Palaiseau 93 98.1 3.6 (3.6%) 2.2 (2.3%) 6.2 (6.3%) 4.0 (4.1%) 0.998 0.998
Payerne 88 99.1 -8.1 (-8.2%) -1.3 (-1.3%) 10.1 (10.2%) 4.8 (4.9%) 0.995 0.997
Carpentras 120 128.7 1.6 (1.3%) 2.1 (1.7%) 4.5 (3.5%) 3.6 (2.8%) 0.998 0.999
Cener 44 115.7 3.1 (2.6%) 3.8 (3.3%) 4.6 (4.0%) 5.6 (4.8%) 0.998 0.998
Sede Boqer 100 169.1 -11.1 (-6.6%) -7.3 (-4.3%) 13.1 (7.8%) 9.2 (5.4%) 0.993 0.997
Tamanrasset 124 174.5 1.2 (0.7%) 2.0 (1.2%) 8.0 (4.6%) 5.6 (3.2%) 0.981 0.991
Brasilia 65 147.5 7.0 (4.8%) 4.6 (3.2%) 9.8 (6.6%) 6.5 (4.4%) 0.973 0.988
Sao Martinho da Serra 72 143.7 -0.3 (-0.2%) -2.9 (-2.1%) 5.1 (3.5%) 5.5 (3.8%) 0.995 0.997
De Aar 11 172.1 0.1 (0.0%) -0.4 (-0.2%) 2.0 (1.2%) 1.9 (1.1%) 0.999 1.000

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HelioClim-3 v4 and v5 -- GHI Quality assessment results vs. the BSRN stations
DAILY SUM OF 15 MIN IRRADIATION
Station Number of values Mean
- BSRN -
(Wh/m²)
Bias HC3v4
(Wh/m2)
(relative in %
)
Bias HC3v5
(Wh/m2)
(relative in %
)
RMSE HC3v4
(Wh/m2)
(relative in %
)
RMSE HC3v5
(Wh/m2)
(relative in %
)
Correl. coeff.
HC3v4
Correl. coeff.
HC3v5
Lerwick 885 2668.1 85.9 (3.2%) 125.1 (4.7%) 470.3 (17.6%) 443.4 (16.6%) 0.972 0.977
Toravere 2977 2830.0 -68.0 (-2.4%) -102.4 (-3.6%) 439.3 (15.5%) 404.7 (14.3%) 0.979 0.983
Lindenberg 1110 2998.9 -140.3 (-4.7%) -129.5 (-4.3%) 392.1 (13.1%) 385.7 (12.9%) 0.987 0.987
Cabauw 3313 2958.2 -116.8 (-3.9%) -79.6 (-2.7%) 385.9 (13.0%) 346.1 (11.7%) 0.986 0.988
Camborne 1202 3181.3 -35.6 (-1.1%) 7.0 (0.2%) 319.0 (10.0%) 293.0 (9.2%) 0.990 0.992
Palaiseau 2814 3244.4 117.0 (3.6%) 72.9 (2.2%) 332.2 (10.2%) 279.7 (8.6%) 0.991 0.993
Payerne 2543 3345.3 -270.6 (-8.1%) -41.6 (-1.2%) 477.4 (14.3%) 385.1 (11.5%) 0.986 0.987
Carpentras 3536 4378.6 55.0 (1.3%) 72.2 (1.7%) 335.6 (7.7%) 286.1 (6.5%) 0.991 0.994
Cener 1251 3987.1 103.9 (2.6%) 128.7 (3.2%) 356.1 (8.9%) 349.0 (8.8%) 0.990 0.991
Sede Boqer 2893 5763.4 -380.8 (-6.6%) -253.1 (-4.4%) 534.7 (9.3%) 409.7 (7.1%) 0.982 0.987
Tamanrasset 3483 6001.3 41.5 (0.7%) 78.4 (1.3%) 563.1 (9.4%) 437.8 (7.3%) 0.925 0.957
Brasilia 1882 5246.9 241.3 (4.6%) 158.0 (3.0%) 638.0 (12.2%) 575.7 (11.0%) 0.900 0.915
Sao Martinho da Serra 2169 4780.0 -13.1 (-0.3%) -99.6 (-2.1%) 414.9 (8.7%) 383.9 (8.0%) 0.985 0.989
De Aar 330 5724.0 2.6 (0.0%) -13.1 (-0.2%) 410.3 (7.2%) 320.9 (5.6%) 0.981 0.988

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HelioClim-3 v4 and v5 -- GHI Quality assessment results vs. the BSRN stations
HOURLY SUM OF 15 MIN IRRADIATION
Station Number of values Mean
- BSRN -
(Wh/m²)
Bias HC3v4
(Wh/m2)
(relative in %
)
Bias HC3v5
(Wh/m2)
(relative in %
)
RMSE HC3v4
(Wh/m2)
(relative in %
)
RMSE HC3v5
(Wh/m2)
(relative in %
)
Correl. coeff.
HC3v4
Correl. coeff.
HC3v5
Lerwick 11295 208.7 6.7 (3.2%) 9.9 (4.7%) 64.8 (31.1%) 63.5 (30.4%) 0.941 0.946
Toravere 35752 225.3 -4.8 (-2.1%) -7.7 (-3.4%) 61.8 (27.4%) 58.7 (26.0%) 0.956 0.961
Lindenberg 13016 255.2 -12.0 (-4.7%) -11.1 (-4.3%) 59.6 (23.3%) 58.3 (22.8%) 0.965 0.967
Cabauw 39152 250.3 -10.0 (-4.0%) -6.8 (-2.7%) 58.2 (23.3%) 55.9 (22.3%) 0.966 0.968
Camborne 14379 265.8 -3.1 (-1.2%) 0.5 (0.2%) 54.7 (20.6%) 53.1 (20.0%) 0.973 0.974
Palaiseau 33144 275.4 9.7 (3.5%) 6.1 (2.2%) 51.3 (18.6%) 48.8 (17.7%) 0.977 0.978
Payerne 29047 290.1 -23.2 (-8.0%) -3.2 (-1.1%) 67.5 (23.3%) 61.9 (21.3%) 0.969 0.971
Carpentras 42702 362.3 4.4 (1.2%) 5.9 (1.6%) 48.4 (13.3%) 46.4 (12.8%) 0.985 0.986
Cener 15145 333.0 8.6 (2.6%) 10.8 (3.2%) 57.2 (17.2%) 57.4 (17.2%) 0.978 0.978
Sede Boqer 32377 519.3 -33.6 (-6.5%) -21.6 (-4.2%) 67.6 (13.0%) 59.5 (11.5%) 0.982 0.984
Tamanrasset 42200 503.3 3.6 (0.7%) 6.2 (1.2%) 70.8 (14.1%) 63.8 (12.7%) 0.977 0.981
Brasilia 22776 435.6 20.1 (4.6%) 13.3 (3.0%) 115.4 (26.5%) 111.5 (25.6%) 0.932 0.935
Sao Martinho da Serra 25967 399.6 -1.1 (-0.3%) -8.4 (-2.1%) 73.7 (18.4%) 70.7 (17.7%) 0.972 0.974
De Aar 3792 496.4 0.3 (0.1%) -1.0 (-0.2%) 56.8 (11.4%) 51.4 (10.3%) 0.983 0.987

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HelioClim-3 v4 and v5 -- GHI Quality assessment results vs. the BSRN stations
15 MIN IRRADIATION
Station Number of values Mean
- BSRN -
(Wh/m²)
Bias HC3v4
(Wh/m2)
(relative in %
)
Bias HC3v5
(Wh/m2)
(relative in %
)
RMSE HC3v4
(Wh/m2)
(relative in %
)
RMSE HC3v5
(Wh/m2)
(relative in %
)
Correl. coeff.
HC3v4
Correl. coeff.
HC3v5
Lerwick 44690 53.0 1.7 (3.3%) 2.5 (4.7%) 20.0 (37.7%) 19.7 (37.2%) 0.915 0.920
Toravere 141091 61.9 -1.6 (-2.6%) -2.4 (-3.8%) 21.1 (34.0%) 20.5 (33.0%) 0.930 0.935
Lindenberg 50550 65.9 -3.1 (-4.7%) -2.8 (-4.3%) 19.8 (30.0%) 19.5 (29.6%) 0.941 0.942
Cabauw 151766 64.9 -2.5 (-3.9%) -1.7 (-2.7%) 19.5 (30.0%) 19.0 (29.4%) 0.941 0.944
Camborne 55822 68.7 -0.8 (-1.1%) 0.2 (0.2%) 18.1 (26.3%) 17.8 (25.9%) 0.954 0.956
Palaiseau 129095 70.9 2.6 (3.6%) 1.6 (2.2%) 18.1 (25.5%) 17.6 (24.8%) 0.955 0.957
Payerne 114535 76.1 -6.2 (-8.2%) -1.0 (-1.3%) 21.7 (28.5%) 20.5 (27.0%) 0.949 0.951
Carpentras 164112 94.4 1.2 (1.3%) 1.6 (1.7%) 15.8 (16.7%) 15.4 (16.3%) 0.974 0.976
Cener 57979 87.8 2.3 (2.6%) 2.9 (3.3%) 19.2 (21.8%) 19.2 (21.9%) 0.961 0.961
Sede Boqer 128614 133.1 -8.7 (-6.5%) -5.7 (-4.3%) 20.4 (15.3%) 18.8 (14.1%) 0.970 0.973
Tamanrasset 162631 133.0 0.9 (0.7%) 1.6 (1.2%) 22.4 (16.9%) 21.0 (15.8%) 0.962 0.967
Brasilia 87250 115.1 5.4 (4.7%) 3.6 (3.1%) 38.1 (33.1%) 37.3 (32.4%) 0.882 0.885
Sao Martinho da Serra 99192 105.2 -0.2 (-0.2%) -2.2 (-2.1%) 24.9 (23.7%) 24.3 (23.1%) 0.949 0.952
De Aar 14636 129.3 0.0 (0.0%) -0.3 (-0.2%) 19.7 (15.2%) 18.7 (14.4%) 0.967 0.971

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Quality assessment results of DNI values

HelioClim-3 v4 and v5 -- DNI Quality assessment results vs. the BSRN stations
MONTHLY SUM OF 15 MIN IRRADIATION
Station Number of values Mean
- BSRN -
(kWh/m²)
Bias HC3v4
(kWh/m2)
(relative in %
)
Bias HC3v5
(kWh/m2)
(relative in %
)
RMSE HC3v4
(kWh/m2)
(relative in %
)
RMSE HC3v5
(kWh/m2)
(relative in %
)
Correl. coeff.
HC3v4
Correl. coeff.
HC3v5
Lerwick 2 82.5 10.9 (13.2%) 19.8 (24.0%) 17.6 (21.4%) 22.7 (27.6%) 1.000 1.000
Toravere 52 135.1 -9.3 (-6.9%) -13.8 (-10.2%) 24.1 (17.8%) 22.4 (16.6%) 0.860 0.885
Lindenberg 22 116.2 2.7 (2.3%) 0.2 (0.1%) 9.6 (8.2%) 14.9 (12.9%) 0.973 0.922
Cabauw 69 99.9 5.6 (5.6%) 9.2 (9.2%) 12.6 (12.6%) 13.4 (13.4%) 0.962 0.966
Camborne 25 93.3 11.6 (12.5%) 15.3 (16.4%) 16.6 (17.8%) 18.5 (19.9%) 0.964 0.962
Palaiseau 71 110.0 17.7 (16.0%) 11.2 (10.2%) 23.4 (21.3%) 15.3 (14.0%) 0.948 0.955
Payerne 44 136.0 -11.9 (-8.7%) 8.7 (6.4%) 15.4 (11.3%) 14.7 (10.8%) 0.965 0.947
Carpentras 119 154.6 -2.7 (-1.7%) 0.1 (0.1%) 14.0 (9.1%) 11.9 (7.7%) 0.981 0.979
Cener 36 136.8 4.2 (3.1%) 5.9 (4.3%) 9.9 (7.2%) 11.5 (8.4%) 0.984 0.980
Sede Boqer 97 185.3 -29.9 (-16.1%) -21.5 (-11.6%) 32.8 (17.7%) 26.0 (14.0%) 0.965 0.967
Tamanrasset 118 181.3 21.6 (11.9%) 25.6 (14.1%) 41.8 (23.1%) 35.6 (19.6%) 0.658 0.852
Brasilia 55 139.5 12.6 (9.0%) 8.5 (6.1%) 21.7 (15.6%) 15.3 (11.0%) 0.955 0.978
Sao Martinho da Serra 39 143.1 -1.8 (-1.2%) -6.3 (-4.4%) 13.4 (9.4%) 11.6 (8.1%) 0.951 0.968
De Aar 12 235.5 -21.1 (-9.0%) -21.9 (-9.3%) 22.8 (9.7%) 23.2 (9.8%) 0.981 0.983

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HelioClim-3 v4 and v5 -- DNI Quality assessment results vs. the BSRN stations
DAILY SUM OF 15 MIN IRRADIATION
Station Number of values Mean
- BSRN -
(Wh/m²)
Bias HC3v4
(Wh/m2)
(relative in %
)
Bias HC3v5
(Wh/m2)
(relative in %
)
RMSE HC3v4
(Wh/m2)
(relative in %
)
RMSE HC3v5
(Wh/m2)
(relative in %
)
Correl. coeff.
HC3v4
Correl. coeff.
HC3v5
Lerwick 252 4234.4 389.0 (9.2%) 798.8 (18.9%) 1505.5 (35.6%) 1641.8 (38.8%) 0.843 0.853
Toravere 1154 6389.0 -873.5 (-13.7%) -913.9 (-14.3%) 1840.3 (28.8%) 1576.5 (24.7%) 0.844 0.896
Lindenberg 513 5218.4 -229.2 (-4.4%) -217.1 (-4.2%) 1300.3 (24.9%) 1218.9 (23.4%) 0.873 0.887
Cabauw 1525 4624.6 42.0 (0.9%) 247.7 (5.4%) 1163.8 (25.2%) 1043.2 (22.6%) 0.889 0.918
Camborne 491 4923.9 219.8 (4.5%) 509.8 (10.4%) 1194.2 (24.3%) 1141.4 (23.2%) 0.905 0.928
Palaiseau 1640 5001.4 440.4 (8.8%) 299.0 (6.0%) 1345.5 (26.9%) 1075.4 (21.5%) 0.876 0.914
Payerne 1095 6122.4 -773.7 (-12.6%) 272.6 (4.5%) 1467.8 (24.0%) 1185.0 (19.4%) 0.876 0.898
Carpentras 2691 6598.6 -217.8 (-3.3%) -94.3 (-1.4%) 1331.4 (20.2%) 1081.3 (16.4%) 0.860 0.914
Cener 807 5994.8 21.9 (0.4%) 130.3 (2.2%) 1276.0 (21.3%) 1138.0 (19.0%) 0.886 0.918
Sede Boqer 2646 6668.3 -1105.4 (-16.6%) -811.1 (-12.2%) 1703.2 (25.5%) 1346.4 (20.2%) 0.811 0.883
Tamanrasset 2960 6767.0 575.5 (8.5%) 793.0 (11.7%) 2111.1 (31.2%) 1759.1 (26.0%) 0.558 0.790
Brasilia 1312 5674.9 383.3 (6.8%) 258.8 (4.6%) 1365.6 (24.1%) 1155.4 (20.4%) 0.823 0.872
Sao Martinho da Serra 975 6573.5 -139.3 (-2.1%) -269.7 (-4.1%) 1372.3 (20.9%) 1120.7 (17.0%) 0.857 0.924
De Aar 327 8415.9 -848.2 (-10.1%) -842.3 (-10.0%) 1507.1 (17.9%) 1257.3 (14.9%) 0.908 0.943

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HelioClim-3 v4 and v5 -- DNI Quality assessment results vs. the BSRN stations
HOURLY SUM OF 15 MIN IRRADIATION
Station Number of values Mean
- BSRN -
(Wh/m²)
Bias HC3v4
(Wh/m2)
(relative in %
)
Bias HC3v5
(Wh/m2)
(relative in %
)
RMSE HC3v4
(Wh/m2)
(relative in %
)
RMSE HC3v5
(Wh/m2)
(relative in %
)
Correl. coeff.
HC3v4
Correl. coeff.
HC3v5
Lerwick 4523 319.6 54.4 (17.0%) 81.2 (25.4%) 201.0 (62.9%) 213.0 (66.6%) 0.711 0.727
Toravere 19508 458.8 -56.7 (-12.4%) -64.1 (-14.0%) 197.7 (43.1%) 182.7 (39.8%) 0.780 0.826
Lindenberg 7540 398.4 -13.4 (-3.4%) -10.5 (-2.6%) 160.8 (40.4%) 160.4 (40.3%) 0.819 0.829
Cabauw 22292 361.5 8.6 (2.4%) 23.9 (6.6%) 150.8 (41.7%) 152.3 (42.1%) 0.829 0.847
Camborne 7313 375.4 29.1 (7.7%) 49.9 (13.3%) 156.7 (41.7%) 159.8 (42.6%) 0.837 0.854
Palaiseau 23149 394.1 44.9 (11.4%) 33.9 (8.6%) 162.4 (41.2%) 151.8 (38.5%) 0.831 0.852
Payerne 15912 484.8 -61.5 (-12.7%) 22.5 (4.6%) 171.2 (35.3%) 164.1 (33.9%) 0.842 0.858
Carpentras 33199 552.1 -11.8 (-2.1%) -0.8 (-0.1%) 158.1 (28.6%) 151.0 (27.3%) 0.840 0.862
Cener 10773 483.9 11.3 (2.3%) 20.9 (4.3%) 161.5 (33.4%) 161.6 (33.4%) 0.851 0.857
Sede Boqer 29263 607.3 -93.5 (-15.4%) -64.6 (-10.6%) 196.1 (32.3%) 174.9 (28.8%) 0.818 0.849
Tamanrasset 36378 584.1 66.5 (11.4%) 79.3 (13.6%) 228.7 (39.2%) 205.3 (35.1%) 0.747 0.822
Brasilia 16486 483.3 42.5 (8.8%) 28.6 (5.9%) 205.4 (42.5%) 192.0 (39.7%) 0.771 0.800
Sao Martinho da Serra 12418 544.2 -4.5 (-0.8%) -18.4 (-3.4%) 195.2 (35.9%) 183.8 (33.8%) 0.809 0.836
De Aar 3886 718.4 -65.4 (-9.1%) -66.6 (-9.3%) 169.6 (23.6%) 156.4 (21.8%) 0.863 0.892

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HelioClim-3 v4 and v5 -- DNI Quality assessment results vs. the BSRN stations
15 MIN IRRADIATION
Station Number of values Mean
- BSRN -
(Wh/m²)
Bias HC3v4
(Wh/m2)
(relative in %
)
Bias HC3v5
(Wh/m2)
(relative in %
)
RMSE HC3v4
(Wh/m2)
(relative in %
)
RMSE HC3v5
(Wh/m2)
(relative in %
)
Correl. coeff.
HC3v4
Correl. coeff.
HC3v5
Lerwick 19410 77.1 15.5 (20.1%) 21.9 (28.4%) 59.6 (77.4%) 62.5 (81.0%) 0.647 0.663
Toravere 83701 116.0 -12.8 (-11.1%) -15.0 (-12.9%) 58.1 (50.0%) 54.8 (47.2%) 0.724 0.766
Lindenberg 30697 99.5 -2.6 (-2.6%) -1.9 (-1.9%) 48.0 (48.3%) 48.0 (48.3%) 0.765 0.775
Cabauw 90895 90.5 3.1 (3.4%) 6.8 (7.5%) 45.9 (50.7%) 46.4 (51.3%) 0.772 0.789
Camborne 29704 94.1 8.7 (9.3%) 13.8 (14.6%) 47.6 (50.6%) 48.3 (51.4%) 0.782 0.800
Palaiseau 94608 98.3 12.6 (12.8%) 9.6 (9.7%) 48.6 (49.5%) 46.3 (47.1%) 0.778 0.799
Payerne 67261 120.8 -14.7 (-12.2%) 6.3 (5.2%) 50.5 (41.8%) 49.7 (41.1%) 0.793 0.808
Carpentras 132403 139.8 -2.3 (-1.6%) 0.2 (0.1%) 45.7 (32.7%) 44.4 (31.8%) 0.791 0.814
Cener 43038 123.2 4.2 (3.4%) 6.5 (5.3%) 48.6 (39.4%) 48.9 (39.7%) 0.795 0.801
Sede Boqer 118265 155.4 -25.0 (-16.1%) -17.9 (-11.5%) 55.0 (35.4%) 50.6 (32.6%) 0.761 0.795
Tamanrasset 143914 151.2 18.9 (12.5%) 21.7 (14.4%) 63.4 (41.9%) 57.6 (38.1%) 0.681 0.768
Brasilia 65389 125.0 12.2 (9.8%) 8.3 (6.7%) 63.4 (50.7%) 60.3 (48.2%) 0.674 0.705
Sao Martinho da Serra 48481 141.5 -0.5 (-0.3%) -4.3 (-3.1%) 58.0 (41.0%) 55.4 (39.1%) 0.736 0.766
De Aar 15099 187.2 -16.8 (-9.0%) -17.4 (-9.3%) 50.9 (27.2%) 48.2 (25.8%) 0.767 0.808

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