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 6.29741e+01 1.00840e+00 448 2002 8 5.43111e+01 3.03539e+00 710 2002 9 4.53772e+01 3.69579e+00 672 2002 10 3.06600e+01 3.96851e+00 227 2002 11 2.03327e+01 6.20528e-01 166 2002 12 1.56836e+01 2.00427e-01 50 2003 1 1.73484e+01 1.09069e-02 14 2003 2 2.93134e+01 2.28657e-01 7 2003 3 4.20260e+01 2.91002e+00 11 2003 4 5.18274e+01 2.16526e+00 28 2003 5 6.26724e+01 8.91964e-01 184 2003 6 6.48455e+01 2.81767e-01 491 2003 7 6.28120e+01 1.45492e+00 521 2003 8 5.55568e+01 2.62200e+00 556 2003 9 4.54951e+01 2.64668e+00 482 2003 10 3.28192e+01 2.17513e+00 557 2003 11 2.03117e+01 2.17428e+00 289 2003 12 1.67227e+01 7.15095e-01 90 2004 1 nan nan 0 2004 2 2.65310e+01 5.00011e-03 2 2004 3 4.40086e+01 1.73924e+00 28 2004 4 5.01226e+01 3.01361e+00 23 2004 5 6.14088e+01 1.46250e+00 245 2004 6 6.45522e+01 3.00586e-01 517 2004 7 6.32335e+01 1.41550e+00 438 2004 8 5.52737e+01 2.96200e+00 564 2004 9 4.31287e+01 3.18939e+00 1131 2004 10 3.30563e+01 3.08430e+00 367 2004 11 2.20911e+01 1.02961e+00 159 2004 12 1.58939e+01 4.91495e-01 14 2005 1 2.14177e+01 1.37619e-01 6 2005 2 2.46810e+01 1.30861e+00 26 2005 3 4.14378e+01 3.70022e+00 24 2005 4 5.48176e+01 2.64252e+00 148 2005 5 6.16416e+01 1.85328e+00 556 2005 6 6.47808e+01 3.63857e-01 680 2005 7 6.23823e+01 1.46920e+00 664 2005 8 5.47425e+01 3.27982e+00 638 2005 9 4.54418e+01 3.82873e+00 645 2005 10 3.15686e+01 3.50311e+00 666 2005 11 2.27932e+01 2.31249e+00 192 2005 12 nan nan 0 2006 1 1.89962e+01 1.60398e+00 17 2006 2 3.02673e+01 2.37576e-02 9 2006 3 3.99273e+01 1.89045e+00 35 2006 4 5.35617e+01 3.02448e+00 103 2006 5 5.98809e+01 1.39851e+00 237 2006 6 6.45978e+01 2.82513e-01 554 2006 7 6.24459e+01 1.64441e+00 398 2006 8 5.54299e+01 3.06565e+00 717 2006 9 4.44892e+01 4.45228e+00 240 2006 10 3.24005e+01 4.41008e+00 346 2006 11 2.10409e+01 2.61737e+00 277 2006 12 1.56368e+01 3.96312e-01 91 2007 1 1.63879e+01 2.24674e-01 75 2007 2 3.06600e+01 0.00000e+00 1 2007 3 4.00395e+01 2.50825e+00 34 2007 4 5.36363e+01 1.38521e+00 23 2007 5 6.21113e+01 1.32894e+00 277 2007 6 6.47972e+01 1.81588e-01 619 2007 7 6.22111e+01 1.54329e+00 892 2007 8 5.40963e+01 3.10529e+00 690 2007 9 4.47057e+01 3.63033e+00 877 2007 10 3.14700e+01 4.25627e+00 610 2007 11 2.42239e+01 1.56141e+00 144 2007 12 1.55330e+01 7.54970e-03 4 2008 1 nan nan 0 2008 2 3.09691e+01 2.09722e-02 7 2008 3 3.96282e+01 3.40654e+00 33 2008 4 5.54094e+01 2.70870e+00 138 2008 5 6.10086e+01 1.62130e+00 290 2008 6 6.47863e+01 1.70421e-01 354 2008 7 6.26746e+01 1.46807e+00 548 2008 8 5.43707e+01 3.06691e+00 1115 2008 9 4.41150e+01 3.60250e+00 630 2008 10 3.00638e+01 3.33653e+00 507 2008 11 1.75420e+01 2.59151e-01 89 2008 12 nan nan 0 2009 1 1.63892e+01 9.79258e-04 5 2009 2 2.60273e+01 8.31330e-01 9 2009 3 4.25024e+01 2.38706e+00 51 2009 4 5.11320e+01 1.92073e+00 54 2009 5 6.23124e+01 1.16497e+00 272 2009 6 6.46469e+01 2.38895e-01 625 2009 7 6.30434e+01 1.23606e+00 449 2009 8 5.59890e+01 2.92860e+00 553 2009 9 4.55247e+01 2.98820e+00 786 2009 10 3.46882e+01 2.00484e+00 49 2009 11 2.35922e+01 5.77161e-01 163 2009 12 nan nan 0 2010 1 2.15877e+01 2.42677e-03 6 2010 2 2.62905e+01 2.19856e+00 16 2010 3 3.70143e+01 3.65848e+00 25 2010 4 5.39619e+01 3.10423e+00 55 2010 5 6.23708e+01 1.63310e+00 360 2010 6 6.46052e+01 3.63533e-01 482 2010 7 6.31207e+01 1.25780e+00 720 2010 8 5.37652e+01 2.73151e+00 847 2010 9 4.34159e+01 3.37530e+00 530 2010 10 3.20643e+01 3.45730e+00 827 2010 11 2.35579e+01 9.69792e-01 315 2010 12 1.54525e+01 5.12612e-02 19 2011 1 1.67093e+01 1.33332e-02 9 2011 2 2.92257e+01 4.97448e-01 30 2011 3 4.16010e+01 3.95166e+00 94 2011 4 5.26336e+01 3.92535e+00 15 2011 5 5.98206e+01 2.28839e+00 57 2011 6 6.45074e+01 3.62652e-01 367 2011 7 6.22498e+01 1.72093e+00 566 2011 8 5.38419e+01 2.04925e+00 835 2011 9 4.57356e+01 2.79108e+00 605 2011 10 3.40446e+01 3.14844e+00 444 2011 11 2.19034e+01 3.42520e+00 205 2011 12 1.60598e+01 3.59749e-01 82 2012 1 1.82389e+01 2.03974e+00 22 2012 2 2.50844e+01 1.72230e+00 32 2012 3 4.13720e+01 2.21708e+00 124 2012 4 5.25547e+01 2.65016e+00 62 2012 5 6.15717e+01 1.19882e+00 423 2012 6 6.46726e+01 2.61690e-01 664 2012 7 6.22820e+01 1.39140e+00 721 2012 8 5.40883e+01 3.10801e+00 801 2012 9 4.32763e+01 4.15230e+00 895 2012 10 3.32197e+01 3.05503e+00 167 2012 11 2.15490e+01 1.74073e+00 196 2012 12 1.57078e+01 2.42369e-02 8 2013 1 1.69823e+01 9.41026e-03 12 2013 2 3.17200e+01 4.89862e-03 3 2013 3 4.32955e+01 2.23093e+00 15 2013 4 5.32472e+01 3.41384e+00 32 2013 5 6.03122e+01 2.05411e+00 123 2013 6 6.46499e+01 3.00606e-01 431 2013 7 6.30688e+01 7.55187e-01 640 2013 8 5.43717e+01 2.13906e+00 722 2013 9 4.28201e+01 4.01460e+00 718 2013 10 3.35408e+01 2.04709e+00 362 2013 11 1.94885e+01 2.50150e-01 114 2013 12 nan nan 0 2014 1 nan nan 0 2014 2 3.01848e+01 2.56154e-02 10 2014 3 nan nan 0 2014 4 5.15940e+01 1.84871e+00 27 2014 5 6.21604e+01 1.87211e+00 465 2014 6 6.43703e+01 2.93844e-01 428 2014 7 6.25894e+01 1.23743e+00 711 2014 8 5.60935e+01 2.83158e+00 308 2014 9 4.40703e+01 3.66658e+00 848 2014 10 3.06086e+01 3.17664e+00 512 2014 11 2.49486e+01 9.26665e-02 60 2014 12 1.59014e+01 7.06814e-03 7 2015 1 2.06647e+01 2.03408e-01 8 2015 2 nan nan 0 2015 3 4.26520e+01 2.52915e+00 46 2015 4 5.27736e+01 4.10989e+00 111 2015 5 6.18623e+01 2.02376e+00 212 2015 6 6.44571e+01 5.13178e-01 350 2015 7 6.23081e+01 1.20601e+00 565 2015 8 5.65982e+01 2.05049e+00 771 2015 9 4.15786e+01 2.14744e+00 613 2015 10 3.04590e+01 2.83599e+00 344 2015 11 2.13696e+01 2.54683e+00 628 2015 12 1.66154e+01 2.82352e-01 67 2016 1 1.74849e+01 1.82811e+00 23 2016 2 2.93710e+01 1.44110e-02 12 2016 3 4.04924e+01 2.80710e+00 23 2016 4 5.26690e+01 1.72254e+00 56 2016 5 6.21256e+01 1.71904e+00 280 2016 6 6.46755e+01 3.10695e-01 577 2016 7 6.25801e+01 1.55969e+00 450 2016 8 5.59469e+01 3.35781e+00 896 2016 9 4.48437e+01 3.05201e+00 682 2016 10 3.16526e+01 2.94434e+00 296 2016 11 2.24472e+01 8.79836e-01 436 2016 12 1.56090e+01 6.07846e-02 18 2017 1 1.72065e+01 1.10271e+00 15 2017 2 2.76452e+01 1.10065e+00 29 2017 3 3.71723e+01 2.19449e+00 81 2017 4 5.25646e+01 2.53704e+00 26 2017 5 6.18838e+01 1.58368e+00 278 2017 6 6.43558e+01 2.20481e-01 430 2017 7 6.22504e+01 1.50900e+00 834 2017 8 5.50158e+01 3.16857e+00 566 2017 9 4.36148e+01 3.30258e+00 727 2017 10 3.26212e+01 2.19588e+00 384 2017 11 1.87508e+01 1.97522e+00 239 2017 12 nan nan 0 2018 1 2.04415e+01 1.12675e+00 33 2018 2 2.96938e+01 2.27598e+00 32 2018 3 3.91046e+01 2.81214e+00 34 2018 4 5.37759e+01 3.03772e+00 20 2018 5 6.14860e+01 1.90440e+00 176 2018 6 6.43476e+01 3.38613e-01 402 2018 7 6.24992e+01 1.63526e+00 783 2018 8 5.48616e+01 3.02510e+00 578 2018 9 4.42331e+01 2.56072e+00 601 2018 10 3.15874e+01 2.95207e+00 204 2018 11 2.00082e+01 4.97908e-01 86 2018 12 1.55929e+01 1.47133e-01 62 2019 1 1.67526e+01 5.19588e-01 32 2019 2 3.03510e+01 5.00011e-03 2 2019 3 4.17815e+01 2.14470e+00 50 2019 4 5.29150e+01 3.23327e+00 33 2019 5 6.16842e+01 1.58114e+00 170 2019 6 6.47112e+01 2.05941e-01 295 2019 7 6.25649e+01 1.22816e+00 566 2019 8 5.54164e+01 2.91960e+00 841 2019 9 4.22954e+01 3.35523e+00 483 2019 10 3.14049e+01 3.28622e+00 372 2019 11 2.03450e+01 2.60962e-02 4 2019 12 1.54590e+01 1.59877e-02 23 2020 1 1.63528e+01 1.42696e-02 18 2020 2 2.89514e+01 2.03418e+00 115 2020 3 3.75661e+01 2.64751e+00 55 2020 4 5.26591e+01 2.43738e+00 41 2020 5 6.24902e+01 1.53462e+00 240 2020 6 6.47491e+01 2.19675e-01 651 2020 7 6.31711e+01 1.26437e+00 577 2020 8 5.72257e+01 6.82160e-01 306 2020 9 4.35945e+01 2.98868e+00 448 2020 10 3.16816e+01 4.12330e+00 474 2020 11 2.17759e+01 2.22338e+00 512 2020 12 1.63125e+01 5.49931e-01 136 2021 1 1.80640e+01 1.25168e+00 17 2021 2 3.16106e+01 9.01472e-01 51 2021 3 3.85572e+01 3.15937e+00 105 2021 4 5.31157e+01 3.06477e+00 59 2021 5 6.13443e+01 1.66555e+00 216 2021 6 6.45144e+01 4.75572e-01 425 2021 7 6.21714e+01 1.68051e+00 210 2021 8 5.43622e+01 1.66653e+00 573 2021 9 4.38765e+01 3.90705e+00 896 2021 10 3.23175e+01 3.05680e+00 247 2021 11 2.01034e+01 2.36328e+00 315 2021 12 nan nan 0 2022 1 1.79160e+01 6.06611e-03 5 2022 2 3.17104e+01 6.90862e-01 18 2022 3 3.81233e+01 2.50951e+00 22 2022 4 5.63560e+01 0.00000e+00 8 2022 5 5.83020e+01 0.00000e+00 4 2022 6 6.47158e+01 3.79032e-01 743 2022 7 6.24487e+01 1.46460e+00 661 2022 8 5.48020e+01 2.69777e+00 818 2022 9 4.43328e+01 4.06143e+00 576 2022 10 3.17720e+01 4.42767e+00 660 2022 11 2.22173e+01 2.60473e+00 479 2022 12 nan nan 0 2023 1 1.69363e+01 1.57252e-02 13 2023 2 2.67046e+01 4.13051e-02 64 2023 3 3.94053e+01 4.18131e+00 373 2023 4 5.23092e+01 2.43303e+00 586 2023 5 6.16329e+01 1.85067e+00 470 2023 6 6.47766e+01 2.09577e-01 366 2023 7 6.25722e+01 1.37763e+00 520 2023 8 5.39176e+01 2.79301e+00 767 2023 9 4.47033e+01 3.61372e+00 607 2023 10 3.29645e+01 4.41189e+00 266 2023 11 2.13695e+01 1.34656e+00 380 2023 12 1.58024e+01 2.83130e-01 222 2024 1 nan nan 0 2024 2 2.57598e+01 3.24148e+00 363 2024 3 3.92797e+01 4.38806e+00 407 2024 4 nan nan 0