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 3.45459e+00 1.30156e+00 215 2002 8 4.29573e+00 1.22964e+00 390 2002 9 3.73212e+00 1.21444e+00 251 2002 10 4.07505e+00 1.41701e+00 539 2002 11 5.28019e+00 2.88613e+00 749 2002 12 5.18060e+00 2.01599e+00 524 2003 1 1.15546e+01 8.90946e+00 819 2003 2 6.77949e+00 3.60627e+00 494 2003 3 nan nan 0 2003 4 2.98400e+01 1.20176e+01 49 2003 5 2.50470e+01 1.21062e+01 48 2003 6 1.00596e+01 5.24955e+00 66 2003 7 nan nan 0 2003 8 1.75942e+01 1.25239e+01 176 2003 9 1.92060e+01 6.85092e+00 138 2003 10 1.13268e+01 7.95409e+00 664 2003 11 1.24760e+01 8.91271e+00 728 2003 12 5.18176e+00 3.13447e+00 771 2004 1 5.79064e+00 4.89863e+00 802 2004 2 8.75290e+00 6.51651e+00 381 2004 3 1.21530e+01 9.64793e+00 228 2004 4 4.71898e+00 2.38759e+00 334 2004 5 3.85806e+00 2.58456e+00 447 2004 6 4.78700e+00 2.46620e+00 442 2004 7 9.50629e+00 1.03306e+01 159 2004 8 6.70811e+00 1.93994e+00 348 2004 9 1.87616e+01 1.21881e+01 63 2004 10 nan nan 0 2004 11 3.24390e+01 9.53368e+00 39 2004 12 1.91909e+01 8.97045e+00 168 2005 1 1.29560e+01 9.49769e+00 333 2005 2 1.63915e+01 8.97987e+00 318 2005 3 1.65655e+01 1.16701e+01 211 2005 4 2.98977e+01 7.99006e+00 77 2005 5 nan nan 0 2005 6 7.73010e+00 1.55595e+00 64 2005 7 2.22138e+01 1.43118e+01 56 2005 8 4.94168e+01 0.00000e+00 2 2005 9 1.13244e+01 5.94000e+00 246 2005 10 8.25181e+00 4.62471e+00 820 2005 11 7.82020e+00 6.71532e+00 818 2005 12 6.28847e+00 3.69970e+00 922 2006 1 1.88615e+01 9.56797e+00 389 2006 2 2.42450e+01 1.00275e+01 199 2006 3 2.02227e+01 1.14586e+01 462 2006 4 8.91790e+00 7.43989e+00 357 2006 5 4.59665e+00 1.92905e+00 338 2006 6 3.74062e+00 2.78560e+00 204 2006 7 8.03110e+00 1.41149e+00 139 2006 8 5.08060e+00 1.04519e+00 209 2006 9 5.05200e+00 1.68499e+00 767 2006 10 4.81267e+00 3.38460e+00 782 2006 11 3.04143e+00 1.30226e+00 698 2006 12 2.83824e+00 2.96948e+00 581 2007 1 2.00891e+00 9.71960e-01 362 2007 2 3.84306e+00 2.44345e+00 653 2007 3 4.01312e+00 2.64598e+00 921 2007 4 3.00810e+00 1.18866e+00 552 2007 5 2.94280e+00 1.02435e+00 158 2007 6 3.52374e+00 2.09865e+00 201 2007 7 5.16614e+00 2.10574e+00 252 2007 8 6.79628e+00 2.57016e+00 393 2007 9 4.91561e+00 3.04619e+00 349 2007 10 4.63516e+00 1.97613e+00 524 2007 11 8.05323e+00 7.91210e+00 949 2007 12 5.54593e+00 3.27413e+00 758 2008 1 4.56424e+00 4.86557e+00 698 2008 2 5.34614e+00 3.17676e+00 743 2008 3 2.51600e+01 1.15824e+01 228 2008 4 1.68749e+01 1.15592e+01 183 2008 5 1.20824e+01 6.58595e+00 280 2008 6 5.83062e+00 2.33348e+00 366 2008 7 4.85149e+00 4.55036e+00 316 2008 8 8.07114e+00 3.88956e+00 146 2008 9 1.14549e+01 8.19197e+00 183 2008 10 1.48058e+01 9.81798e+00 585 2008 11 5.91399e+00 4.49237e+00 918 2008 12 1.11854e+01 7.42213e+00 849 2009 1 9.70837e+00 7.29107e+00 578 2009 2 5.33472e+00 2.58038e+00 932 2009 3 4.63268e+00 2.56369e+00 843 2009 4 8.45600e+00 3.92844e+00 225 2009 5 2.07869e+01 1.02937e+01 52 2009 6 4.73272e+00 2.18946e+00 139 2009 7 nan nan 0 2009 8 1.35462e+01 7.05771e+00 343 2009 9 1.22721e+01 8.62162e+00 418 2009 10 7.71986e+00 5.89708e+00 691 2009 11 3.90399e+00 2.42179e+00 711 2009 12 4.04707e+00 1.35582e+00 192 2010 1 8.97250e+00 7.90293e+00 820 2010 2 1.67363e+01 1.18028e+01 228 2010 3 1.92931e+01 9.15849e+00 407 2010 4 1.94431e+01 1.00759e+01 46 2010 5 8.48863e+00 5.11726e+00 369 2010 6 8.76270e+00 6.45324e+00 362 2010 7 1.68094e+01 1.14243e+01 213 2010 8 1.90167e+01 1.26411e+01 144 2010 9 9.50569e+00 4.44521e+00 447 2010 10 4.66572e+00 1.74068e+00 1442 2010 11 4.61641e+00 2.88396e+00 1123 2010 12 2.95928e+00 2.48598e+00 857 2011 1 3.08467e+00 1.63191e+00 681 2011 2 2.92312e+00 1.84520e+00 768 2011 3 3.76695e+00 1.70975e+00 832 2011 4 3.98991e+00 1.77926e+00 618 2011 5 2.82385e+00 1.60327e+00 627 2011 6 3.82222e+00 8.46640e-01 198 2011 7 3.95250e+00 1.74622e+00 390 2011 8 5.16862e+00 3.80141e+00 165 2011 9 3.34814e+00 9.46001e-01 672 2011 10 2.92090e+00 1.13509e+00 869 2011 11 2.84427e+00 1.76685e+00 1037 2011 12 2.44935e+00 1.07528e+00 853 2012 1 2.72770e+00 2.04234e+00 947 2012 2 1.99830e+00 5.75462e-01 179 2012 3 5.58613e+00 5.21238e+00 560 2012 4 4.88328e+00 3.19718e+00 679 2012 5 3.58554e+00 1.07674e+00 335 2012 6 5.76225e+00 1.72994e+00 96 2012 7 nan nan 0 2012 8 4.69289e+01 0.00000e+00 2 2012 9 3.17049e+01 1.01266e+01 37 2012 10 1.87810e+01 9.47215e+00 152 2012 11 7.30960e+00 5.45840e+00 623 2012 12 7.57032e+00 2.49374e+00 492 2013 1 4.21082e+00 2.92054e+00 552 2013 2 3.09910e+00 5.69803e-01 448 2013 3 1.01459e+01 7.47619e+00 449 2013 4 1.90709e+01 1.20022e+01 69 2013 5 7.86841e+00 3.22263e+00 122 2013 6 2.38030e+01 1.11674e+01 199 2013 7 nan nan 0 2013 8 2.17872e+01 0.00000e+00 4 2013 9 8.96228e+00 3.72124e+00 5 2013 10 1.34347e+01 7.91167e+00 549 2013 11 1.43540e+01 1.20045e+01 219 2013 12 6.18858e+00 2.08506e+00 579 2014 1 7.50414e+00 2.30856e+00 300 2014 2 1.83795e+01 1.22374e+01 328 2014 3 1.86864e+01 1.18464e+01 213 2014 4 1.11836e-01 3.81847e-02 5 2014 5 nan nan 0 2014 6 1.29611e+01 2.07294e+00 64 2014 7 1.71051e+01 7.66493e+00 148 2014 8 1.08373e+01 4.10903e+00 206 2014 9 9.96353e+00 7.30841e+00 166 2014 10 1.68116e+01 1.00594e+01 507 2014 11 6.03248e+00 3.99834e+00 880 2014 12 6.80642e+00 4.86228e+00 639 2015 1 1.41619e+01 1.02463e+01 458 2015 2 1.72841e+01 1.27153e+01 398 2015 3 2.71585e+01 8.96358e+00 154 2015 4 3.11032e+01 7.48077e+00 59 2015 5 1.06654e+01 8.58437e+00 416 2015 6 5.91440e+00 2.90843e+00 320 2015 7 1.87272e+01 1.33701e+01 15 2015 8 1.76983e+01 1.27859e+01 124 2015 9 3.17085e+01 8.71464e+00 28 2015 10 1.07769e+01 8.16872e+00 565 2015 11 1.00231e+01 5.47662e+00 631 2015 12 5.04102e+00 2.71015e+00 507 2016 1 7.83351e+00 3.19479e+00 434 2016 2 1.64885e+01 1.04707e+01 653 2016 3 1.41423e+01 8.22431e+00 453 2016 4 1.11214e+01 4.28293e+00 221 2016 5 1.07860e+01 4.78688e+00 478 2016 6 6.33129e+00 3.02427e+00 443 2016 7 8.70204e+00 3.35353e+00 618 2016 8 5.73200e+00 4.52923e+00 550 2016 9 2.81294e+01 1.08401e+01 158 2016 10 7.70979e+00 3.43045e+00 713 2016 11 4.58853e+00 1.74073e+00 801 2016 12 2.87476e+00 8.07810e-01 787 2017 1 4.67484e+00 1.36773e+00 576 2017 2 1.69942e+01 7.08075e+00 445 2017 3 7.43400e+00 5.68163e+00 743 2017 4 3.72631e+00 1.86016e+00 605 2017 5 3.74078e+00 1.50027e+00 398 2017 6 3.45894e+00 1.47775e+00 320 2017 7 nan nan 0 2017 8 9.33613e+00 3.53609e+00 188 2017 9 1.82485e+01 1.14030e+01 104 2017 10 1.38165e+01 4.58097e+00 71 2017 11 1.33301e+01 9.01670e+00 859 2017 12 6.54422e+00 3.11875e+00 571 2018 1 4.87020e+00 2.70444e+00 628 2018 2 8.96804e+00 4.99087e+00 633 2018 3 6.77520e+00 4.78132e+00 888 2018 4 6.47977e+00 5.20419e+00 377 2018 5 4.58300e+00 1.81408e+00 373 2018 6 1.56656e+01 9.66654e+00 137 2018 7 6.64930e+00 0.00000e+00 1 2018 8 2.33485e+01 1.26327e+01 82 2018 9 1.71557e+01 1.13917e+01 409 2018 10 1.20499e+01 7.31482e+00 834 2018 11 6.61234e+00 3.25010e+00 366 2018 12 1.25228e+01 9.83192e+00 239 2019 1 1.83412e+01 1.34820e+01 104 2019 2 3.53436e+01 8.32048e+00 44 2019 3 1.67831e+01 1.11314e+01 218 2019 4 9.42101e+00 3.22385e+00 253 2019 5 4.80773e+00 1.47949e+00 488 2019 6 2.82867e+00 1.24239e+00 99 2019 7 4.85912e+00 1.02663e+00 128 2019 8 2.31861e+01 9.08873e+00 114 2019 9 9.80561e+00 7.22561e+00 437 2019 10 6.16754e+00 2.23989e+00 486 2019 11 4.09630e+00 1.50503e+00 704 2019 12 5.18069e+00 1.99316e+00 240 2020 1 6.52357e+00 3.54417e+00 636 2020 2 5.58189e+00 1.90562e+00 524 2020 3 1.35128e+01 1.01132e+01 290 2020 4 9.53697e+00 5.15968e+00 178 2020 5 1.14585e+01 5.92523e+00 281 2020 6 2.22434e+01 7.67399e+00 10 2020 7 9.28224e+00 5.14668e+00 70 2020 8 2.90562e+00 2.83876e+00 22 2020 9 2.36529e+01 7.86078e+00 28 2020 10 1.44642e+01 9.76322e+00 272 2020 11 9.33713e+00 6.92542e+00 712 2020 12 4.77636e+00 1.62568e+00 518 2021 1 6.76221e+00 3.23263e+00 220 2021 2 1.72437e+01 1.00665e+01 336 2021 3 nan nan 0 2021 4 nan nan 0 2021 5 9.31530e+00 6.56182e+00 348 2021 6 5.05665e+00 2.80692e+00 171 2021 7 1.26732e+01 6.63950e+00 50 2021 8 7.79591e-02 0.00000e+00 2 2021 9 1.29558e+01 3.22543e+00 64 2021 10 1.77663e+01 8.18648e+00 99 2021 11 7.95210e+00 5.81451e+00 640 2021 12 9.08066e+00 5.21800e+00 640 2022 1 7.71680e+00 4.58178e+00 588 2022 2 7.31418e+00 4.75920e+00 810 2022 3 9.41703e+00 7.06182e+00 747 2022 4 nan nan 0 2022 5 1.32286e+01 9.85261e+00 261 2022 6 1.33901e+01 7.11767e+00 316 2022 7 5.38454e+00 3.91931e+00 264 2022 8 1.38380e+01 1.10699e+01 135 2022 9 4.73932e+00 9.44520e-01 64 2022 10 1.04610e+01 1.15061e+01 681 2022 11 7.51229e+00 4.08492e+00 409 2022 12 7.13926e+00 4.46719e+00 684 2023 1 4.10781e+00 1.34842e+00 756 2023 2 8.67404e+00 4.29138e+00 670 2023 3 2.12959e+01 9.53511e+00 437 2023 4 1.44734e+01 1.21582e+01 291 2023 5 8.60768e+00 5.74352e+00 320 2023 6 1.05495e+01 5.59724e+00 301 2023 7 1.06882e+01 7.00744e+00 66 2023 8 2.29983e+01 1.27701e+01 106 2023 9 1.06380e+01 9.16974e+00 164 2023 10 1.58960e+01 1.33367e+01 408 2023 11 9.80167e+00 8.07654e+00 514 2023 12 1.17815e+01 7.76387e+00 221 2024 1 3.83247e+01 9.65445e+00 12 2024 2 2.38278e+01 8.33015e+00 282 2024 3 1.61548e+01 6.50806e+00 199 2024 4 nan nan 0