YEAR MONTH MEAN STDEV COUNT 2002 1 nan nan 0 2002 2 nan nan 0 2002 3 nan nan 0 2002 4 nan nan 0 2002 5 nan nan 0 2002 6 nan nan 0 2002 7 1.84815e+01 0.00000e+00 4 2002 8 nan nan 0 2002 9 5.86996e+00 3.82804e+00 131 2002 10 1.12378e+01 8.49942e-01 71 2002 11 6.71994e+00 6.53804e+00 128 2002 12 1.73343e+00 1.44737e+00 835 2003 1 2.56059e+00 2.97877e+00 745 2003 2 1.04835e+01 5.18521e+00 1024 2003 3 1.56468e+01 4.90219e+00 384 2003 4 1.67858e+01 2.29185e+00 139 2003 5 1.03893e+01 2.67635e+00 66 2003 6 2.78343e+01 0.00000e+00 2 2003 7 1.88551e+01 4.56506e+00 50 2003 8 nan nan 0 2003 9 1.40719e+01 4.53948e+00 250 2003 10 8.64215e+00 5.09347e+00 346 2003 11 1.58298e+00 1.85309e+00 828 2003 12 3.00221e+00 5.90303e+00 491 2004 1 1.36816e+00 2.03491e+00 183 2004 2 1.75013e+01 1.87723e+00 29 2004 3 1.70359e+01 1.82108e+00 123 2004 4 2.57926e+01 1.98194e+00 84 2004 5 nan nan 0 2004 6 2.91688e+01 5.61218e+00 41 2004 7 2.31379e+01 0.00000e+00 2 2004 8 1.86788e+01 3.95007e+00 106 2004 9 5.72494e+00 1.68096e+00 110 2004 10 7.24967e+00 3.93907e+00 653 2004 11 4.40274e+00 3.10889e+00 896 2004 12 5.26289e+00 3.53028e+00 355 2005 1 1.13279e+00 9.23000e-01 852 2005 2 2.84241e+00 1.76663e+00 339 2005 3 1.94448e+01 5.68329e+00 141 2005 4 2.12493e+01 1.50744e+00 74 2005 5 1.96567e+01 3.57283e+00 206 2005 6 1.43366e+01 4.06655e-01 33 2005 7 1.50512e+01 3.60675e+00 20 2005 8 1.34968e+01 3.11836e+00 39 2005 9 1.00021e+01 1.12276e+01 101 2005 10 1.18203e+00 2.55988e-01 64 2005 11 4.49539e-01 5.76588e-01 698 2005 12 4.33001e-01 5.26297e-01 851 2006 1 8.32100e-01 6.63242e-01 576 2006 2 2.77692e+00 3.63814e+00 448 2006 3 1.00711e+01 5.91948e+00 240 2006 4 1.47032e+01 4.37157e+00 304 2006 5 1.66956e+01 6.09298e+00 192 2006 6 1.49934e+01 1.19777e+00 19 2006 7 1.19875e+01 4.67009e+00 101 2006 8 1.32574e+01 2.60674e+00 16 2006 9 7.03596e+00 9.54288e+00 12 2006 10 1.47472e-01 2.62719e-01 64 2006 11 2.64251e+00 3.50928e+00 546 2006 12 3.19070e+00 4.48956e+00 455 2007 1 6.24348e+00 4.85124e+00 874 2007 2 8.86565e+00 6.97980e-01 64 2007 3 1.41964e+01 5.34830e+00 40 2007 4 nan nan 0 2007 5 1.95860e+01 1.43600e+00 55 2007 6 1.51674e+01 2.10564e+00 118 2007 7 1.43248e+01 6.38820e+00 242 2007 8 1.19589e+01 3.87329e+00 416 2007 9 9.25008e+00 3.44003e+00 341 2007 10 3.99529e+00 3.63157e+00 244 2007 11 5.03771e+00 3.80126e+00 862 2007 12 6.69777e+00 4.24748e+00 1035 2008 1 5.21456e+00 4.78408e+00 667 2008 2 1.51153e+01 4.82385e+00 259 2008 3 2.44379e+01 5.58058e+00 67 2008 4 nan nan 0 2008 5 7.12679e+00 2.62098e+00 319 2008 6 5.86134e+00 3.25390e+00 172 2008 7 4.60967e+00 3.87169e+00 132 2008 8 4.94526e+00 1.35714e+00 180 2008 9 2.49859e+00 2.46905e-01 42 2008 10 6.35929e+00 1.45085e+00 181 2008 11 1.58094e+00 1.51109e+00 1068 2008 12 2.41242e+00 2.33074e+00 791 2009 1 4.30176e+00 3.22684e+00 337 2009 2 3.94515e+00 6.38740e+00 97 2009 3 2.73006e+01 8.00889e-02 9 2009 4 2.09942e+01 1.19235e+00 128 2009 5 1.65981e+01 4.78095e+00 128 2009 6 2.26400e+01 2.00473e+00 57 2009 7 8.01172e+00 7.69062e+00 87 2009 8 4.23899e+00 1.90900e+00 294 2009 9 6.30706e+00 4.61633e+00 345 2009 10 2.73890e+00 3.32551e+00 479 2009 11 1.01716e+00 1.46735e+00 549 2009 12 4.99274e+00 3.93818e+00 739 2010 1 1.56046e-01 1.34878e-02 3 2010 2 9.08762e-01 4.73055e-02 7 2010 3 4.80208e+00 3.88931e-01 64 2010 4 5.57323e+00 2.43136e-01 40 2010 5 1.23657e+01 1.87846e+00 88 2010 6 5.50168e+00 6.77245e+00 31 2010 7 6.56258e+00 2.33139e+00 573 2010 8 2.26858e+00 4.01780e-01 64 2010 9 1.22146e+01 5.65237e+00 18 2010 10 3.75475e+00 2.58562e+00 813 2010 11 5.30458e+00 4.77908e+00 876 2010 12 1.32669e+00 2.32027e+00 448 2011 1 nan nan 0 2011 2 nan nan 0 2011 3 2.32333e+01 1.91054e+00 73 2011 4 2.16370e+01 4.02742e+00 178 2011 5 2.31782e+01 3.96668e+00 149 2011 6 2.73425e+01 4.20323e+00 85 2011 7 2.96830e+01 6.71859e-01 4 2011 8 nan nan 0 2011 9 1.30694e+01 0.00000e+00 2 2011 10 1.35077e+00 2.47899e+00 145 2011 11 3.32753e+00 2.95706e+00 915 2011 12 3.73922e+00 3.23017e+00 1229 2012 1 1.56839e+00 1.06605e+00 850 2012 2 7.08132e+00 5.27078e+00 467 2012 3 7.38459e+00 4.24151e+00 585 2012 4 1.44500e+01 2.61660e+00 127 2012 5 1.66337e+01 7.09875e+00 128 2012 6 7.30437e+00 1.78296e+00 66 2012 7 2.24570e+01 3.33966e+00 12 2012 8 nan nan 0 2012 9 1.05522e+01 9.91022e+00 189 2012 10 1.24255e+01 8.27689e-01 67 2012 11 1.96059e+00 1.88509e+00 900 2012 12 3.60928e+00 3.53611e+00 533 2013 1 4.21948e+00 2.77733e+00 876 2013 2 7.80875e+00 5.01895e+00 343 2013 3 2.86047e+01 0.00000e+00 1 2013 4 2.41297e+01 5.48022e+00 128 2013 5 nan nan 0 2013 6 nan nan 0 2013 7 1.16904e+01 1.51737e+00 11 2013 8 2.94841e+00 2.87772e+00 60 2013 9 nan nan 0 2013 10 6.70286e+00 9.57267e-01 7 2013 11 4.81323e+00 3.41216e+00 670 2013 12 7.20791e+00 5.29486e+00 757 2014 1 4.50236e+00 5.18494e+00 727 2014 2 1.24901e+01 6.76762e+00 603 2014 3 1.89517e+01 6.75842e+00 38 2014 4 9.29419e+00 1.54249e+00 16 2014 5 5.57731e+00 3.38374e+00 198 2014 6 1.57111e+01 2.78251e+00 370 2014 7 6.94848e+00 2.62338e+00 71 2014 8 9.60591e+00 3.60414e+00 536 2014 9 1.27359e+01 2.47622e-01 5 2014 10 8.91943e+00 4.97173e+00 112 2014 11 4.32896e+00 4.80426e+00 883 2014 12 2.60530e+00 1.99773e+00 781 2015 1 4.47240e+00 2.90153e+00 704 2015 2 2.59477e+00 2.37147e+00 316 2015 3 1.87770e+01 7.27288e+00 117 2015 4 1.95580e+01 1.99155e+00 64 2015 5 1.80262e+01 5.62903e+00 68 2015 6 1.67708e+01 2.01073e+00 83 2015 7 9.77836e+00 3.86663e+00 192 2015 8 1.18554e+01 3.71226e+00 82 2015 9 1.34907e+01 3.71911e+00 168 2015 10 7.73321e+00 4.91826e+00 434 2015 11 6.34390e+00 5.40726e+00 799 2015 12 5.21401e+00 2.62870e+00 595 2016 1 7.41923e+00 1.70694e+00 67 2016 2 9.24751e+00 5.68472e+00 429 2016 3 1.24094e+01 4.66012e+00 192 2016 4 1.26882e+01 3.12594e+00 204 2016 5 1.09800e+01 4.59780e+00 644 2016 6 1.23726e+01 2.79718e+00 413 2016 7 1.16505e+01 3.61631e+00 299 2016 8 1.34416e+01 3.40362e+00 109 2016 9 1.06219e+01 2.38189e+00 71 2016 10 5.84148e+00 5.09095e+00 578 2016 11 4.86079e+00 3.53166e+00 1079 2016 12 9.97829e+00 4.83082e+00 721 2017 1 9.35213e+00 7.82948e+00 560 2017 2 1.16556e+01 5.19518e+00 88 2017 3 1.39857e+01 8.18305e+00 191 2017 4 1.87881e+01 3.76271e-01 23 2017 5 1.08424e+01 2.74614e+00 450 2017 6 nan nan 0 2017 7 2.67165e+01 3.77356e-01 30 2017 8 1.20018e+01 5.10297e+00 249 2017 9 6.51382e+00 7.69028e+00 271 2017 10 4.59263e+00 4.25762e+00 450 2017 11 4.84020e+00 2.43337e+00 963 2017 12 4.22005e+00 2.50076e+00 1269 2018 1 8.85177e+00 4.85793e+00 192 2018 2 1.01186e+01 6.17776e+00 972 2018 3 8.72103e+00 4.52643e+00 106 2018 4 1.08373e+01 1.29657e+00 65 2018 5 nan nan 0 2018 6 2.39446e+01 2.44007e+00 51 2018 7 2.69346e+01 5.63535e+00 83 2018 8 nan nan 0 2018 9 nan nan 0 2018 10 6.13348e+00 3.91570e+00 135 2018 11 1.22164e+01 1.61643e+00 295 2018 12 5.11257e+00 3.62978e+00 640 2019 1 4.45640e+00 4.01862e+00 691 2019 2 1.29984e+01 3.77084e+00 1031 2019 3 9.47827e+00 6.20854e+00 651 2019 4 7.50274e+00 5.70585e+00 721 2019 5 1.80104e+01 6.34739e+00 202 2019 6 2.43667e+01 3.13116e+00 132 2019 7 2.62157e+01 8.50441e-01 43 2019 8 3.42745e+00 6.61213e-01 6 2019 9 9.60848e+00 5.14977e+00 267 2019 10 1.19409e+01 4.19055e+00 385 2019 11 5.26936e+00 4.04115e+00 540 2019 12 4.42791e+00 3.06874e+00 735 2020 1 6.24008e+00 4.28409e+00 754 2020 2 8.97336e+00 6.13821e+00 677 2020 3 1.48703e+01 6.50595e+00 211 2020 4 1.98760e+01 1.29740e+00 65 2020 5 1.69218e+01 2.54532e+00 98 2020 6 1.31372e+01 2.04152e+00 229 2020 7 9.57936e+00 2.83029e+00 126 2020 8 1.23877e+01 2.06017e+00 137 2020 9 6.37738e+00 1.22128e+00 66 2020 10 6.90641e+00 4.36364e+00 106 2020 11 4.90505e+00 3.22323e+00 520 2020 12 1.98568e+00 2.15943e+00 1000 2021 1 6.69737e+00 3.07186e+00 771 2021 2 4.78724e+00 3.06348e+00 665 2021 3 7.43401e+00 4.97113e+00 598 2021 4 1.10374e+01 3.47251e+00 462 2021 5 1.04418e+01 3.54484e+00 231 2021 6 1.38331e+01 3.38331e+00 160 2021 7 1.26530e+01 5.85846e+00 487 2021 8 5.97831e+00 4.04426e+00 404 2021 9 1.28800e+01 3.91885e+00 373 2021 10 1.06499e+01 2.90689e+00 691 2021 11 1.23224e+00 1.77388e+00 468 2021 12 3.35999e+00 2.35546e+00 943 2022 1 3.47129e+00 4.85639e+00 349 2022 2 7.44682e+00 5.55702e+00 908 2022 3 1.25695e+01 4.84031e+00 277 2022 4 9.99083e+00 4.40871e+00 76 2022 5 1.72754e+01 2.32225e+00 280 2022 6 1.15059e+01 3.47636e+00 172 2022 7 1.85928e+01 3.00670e+00 106 2022 8 1.50894e+01 6.75884e+00 90 2022 9 3.64756e+00 3.92013e+00 256 2022 10 2.37160e+00 1.47465e+00 995 2022 11 3.81121e+00 2.85183e+00 891 2022 12 3.72545e+00 2.07055e+00 973 2023 1 3.70508e+00 3.03525e+00 868 2023 2 9.29243e+00 4.88420e+00 1024 2023 3 5.52949e+00 3.03399e+00 391 2023 4 1.34163e+01 8.35522e+00 174 2023 5 1.21780e+01 1.92247e+00 132 2023 6 1.39432e+01 2.05111e+00 34 2023 7 1.17410e+01 6.86420e+00 42 2023 8 nan nan 0 2023 9 nan nan 0 2023 10 nan nan 0 2023 11 4.74066e+00 3.17445e+00 777 2023 12 4.35366e+00 3.54391e+00 302 2024 1 5.84968e+00 4.51433e+00 265 2024 2 8.05940e+00 6.79707e+00 272 2024 3 2.74812e+01 6.63040e-01 64 2024 4 1.94587e+01 4.70239e-01 5