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 2.20816e+00 1.01489e+00 230 2002 8 2.07100e+00 6.66976e-01 499 2002 9 2.17001e+00 4.97383e-01 420 2002 10 2.26476e+00 9.39000e-01 808 2002 11 2.75300e+00 1.31905e+00 871 2002 12 2.11979e+00 1.17982e+00 640 2003 1 2.66399e+00 1.58829e+00 938 2003 2 2.39353e+00 9.81867e-01 561 2003 3 8.40747e+00 4.71386e+00 128 2003 4 2.10178e+01 8.15227e+00 37 2003 5 7.83088e+00 8.81715e+00 279 2003 6 7.11725e+00 6.00476e+00 423 2003 7 6.82536e+00 3.53968e+00 150 2003 8 8.92180e+00 8.03745e+00 395 2003 9 4.40760e+00 4.55584e+00 431 2003 10 4.79183e+00 3.31286e+00 966 2003 11 4.32882e+00 3.91826e+00 958 2003 12 2.10985e+00 8.48229e-01 888 2004 1 3.13260e+00 2.33393e+00 832 2004 2 2.27648e+00 7.92885e-01 512 2004 3 4.63276e+00 2.97383e+00 742 2004 4 1.70897e+00 7.41982e-01 510 2004 5 1.62202e+00 5.53649e-01 618 2004 6 3.24556e+00 3.38740e+00 451 2004 7 2.75979e+00 1.00016e+00 448 2004 8 2.65802e+00 1.12372e+00 494 2004 9 6.77424e+00 7.17885e+00 228 2004 10 2.59262e+01 1.13534e+01 151 2004 11 2.51413e+01 1.11003e+01 183 2004 12 1.49795e+01 9.78356e+00 588 2005 1 9.12756e+00 7.31735e+00 839 2005 2 5.87805e+00 2.49663e+00 640 2005 3 3.95321e+00 2.30658e+00 555 2005 4 1.21664e+01 9.39634e+00 414 2005 5 4.74628e+00 2.48930e+00 121 2005 6 4.70595e+00 1.67956e+00 268 2005 7 1.27130e+01 9.53010e+00 339 2005 8 8.84236e+00 5.00548e+00 154 2005 9 5.71304e+00 2.56149e+00 345 2005 10 3.57286e+00 1.89781e+00 920 2005 11 2.27605e+00 8.05203e-01 1056 2005 12 2.87419e+00 1.67250e+00 1022 2006 1 9.33940e+00 1.03496e+01 622 2006 2 9.05344e+00 4.99490e+00 629 2006 3 6.63026e+00 4.22927e+00 1026 2006 4 2.44461e+00 1.50733e+00 453 2006 5 1.27956e+00 7.63438e-01 488 2006 6 2.28445e+00 9.19218e-01 369 2006 7 3.47646e+00 2.02665e+00 188 2006 8 3.16597e+00 1.39586e+00 220 2006 9 2.37097e+00 7.77202e-01 880 2006 10 1.86379e+00 8.69935e-01 845 2006 11 1.75251e+00 8.56908e-01 846 2006 12 1.20220e+00 6.86398e-01 534 2007 1 1.14617e+00 8.43349e-01 384 2007 2 1.18712e+00 8.80419e-01 774 2007 3 1.24662e+00 5.27236e-01 1150 2007 4 1.24978e+00 8.38252e-01 574 2007 5 1.03743e+00 6.50959e-01 235 2007 6 1.49567e+00 9.49445e-01 410 2007 7 1.64968e+00 6.98669e-01 381 2007 8 2.98108e+00 9.29074e-01 478 2007 9 3.23073e+00 6.15713e-01 511 2007 10 2.36404e+00 9.93055e-01 816 2007 11 1.79272e+00 1.42563e+00 1088 2007 12 2.20510e+00 1.88934e+00 776 2008 1 1.58186e+00 1.40422e+00 640 2008 2 2.14513e+00 1.06157e+00 812 2008 3 9.99261e+00 1.01797e+01 681 2008 4 4.15268e+00 1.75658e+00 457 2008 5 5.59494e+00 2.56407e+00 464 2008 6 3.89560e+00 1.38232e+00 505 2008 7 2.55710e+00 1.12481e+00 446 2008 8 3.11035e+00 2.01397e+00 258 2008 9 7.52523e+00 8.04897e+00 492 2008 10 5.04528e+00 2.91828e+00 889 2008 11 1.56603e+00 1.01502e+00 1024 2008 12 5.44944e+00 4.35417e+00 931 2009 1 3.00864e+00 9.39186e-01 690 2009 2 2.36748e+00 1.22410e+00 930 2009 3 1.90231e+00 7.75459e-01 963 2009 4 7.29723e+00 9.79426e+00 371 2009 5 6.18188e+00 4.60317e+00 157 2009 6 1.92949e+00 8.53381e-01 260 2009 7 1.11723e+01 1.33544e+01 100 2009 8 5.72967e+00 2.67684e+00 558 2009 9 5.07527e+00 3.43633e+00 747 2009 10 2.69462e+00 1.96565e+00 830 2009 11 1.97447e+00 2.95135e+00 717 2009 12 1.55951e+00 9.11865e-01 256 2010 1 3.13335e+00 1.31788e+00 960 2010 2 4.54667e+00 1.40317e+00 675 2010 3 8.68349e+00 5.13880e+00 898 2010 4 9.55751e+00 6.93776e+00 200 2010 5 3.79886e+00 2.89520e+00 577 2010 6 3.93859e+00 2.54438e+00 550 2010 7 5.10961e+00 2.71887e+00 319 2010 8 5.73453e+00 3.75913e+00 165 2010 9 4.06430e+00 1.76112e+00 612 2010 10 1.83655e+00 7.81874e-01 1471 2010 11 1.49277e+00 6.47221e-01 1162 2010 12 1.49481e+00 9.96594e-01 960 2011 1 1.26443e+00 8.57256e-01 551 2011 2 8.77966e-01 5.38906e-01 827 2011 3 1.13320e+00 5.83100e-01 780 2011 4 1.33120e+00 8.36654e-01 900 2011 5 1.16361e+00 4.48671e-01 831 2011 6 1.28151e+00 5.93677e-01 256 2011 7 2.20612e+00 8.48045e-01 384 2011 8 1.68048e+00 7.97656e-01 432 2011 9 1.98020e+00 7.21042e-01 752 2011 10 1.50098e+00 9.09815e-01 961 2011 11 1.27022e+00 6.59339e-01 1133 2011 12 1.01984e+00 5.22065e-01 1024 2012 1 1.14390e+00 7.86665e-01 920 2012 2 8.81442e-01 3.94127e-01 160 2012 3 1.22148e+00 7.78544e-01 831 2012 4 1.19495e+00 5.31301e-01 765 2012 5 1.46836e+00 2.61538e-01 320 2012 6 2.25061e+00 4.02404e-01 128 2012 7 2.94315e+00 1.29023e+00 246 2012 8 1.80153e+01 8.57872e+00 326 2012 9 1.24344e+01 9.00823e+00 541 2012 10 6.63892e+00 2.45150e+00 519 2012 11 3.44706e+00 3.29625e+00 892 2012 12 4.38683e+00 1.77101e+00 571 2013 1 2.61604e+00 1.79441e+00 597 2013 2 1.84654e+00 4.86593e-01 557 2013 3 2.59347e+00 3.64202e+00 703 2013 4 1.17464e+01 9.50203e+00 422 2013 5 3.57749e+00 1.75614e+00 325 2013 6 1.20879e+01 8.34214e+00 370 2013 7 1.42371e+01 5.62726e+00 72 2013 8 2.13458e+01 8.57897e+00 144 2013 9 1.53654e+01 7.88705e+00 271 2013 10 5.42809e+00 3.17348e+00 947 2013 11 6.60548e+00 4.88089e+00 442 2013 12 2.75561e+00 1.60719e+00 768 2014 1 2.93126e+00 7.26301e-01 497 2014 2 6.71456e+00 8.85194e+00 704 2014 3 8.58437e+00 7.93709e+00 538 2014 4 1.57802e+01 1.08294e+01 118 2014 5 1.35666e+01 6.71082e+00 128 2014 6 1.75594e+01 1.51252e+01 175 2014 7 1.14357e+01 7.32686e+00 554 2014 8 3.30272e+00 1.18933e+00 430 2014 9 8.31738e+00 7.53136e+00 319 2014 10 7.49597e+00 7.09765e+00 1235 2014 11 1.76566e+00 1.10585e+00 1021 2014 12 2.77822e+00 2.78310e+00 565 2015 1 4.14916e+00 4.79952e+00 830 2015 2 2.84988e+00 2.15993e+00 768 2015 3 1.08381e+01 7.70072e+00 320 2015 4 5.93742e+00 1.02831e+00 64 2015 5 3.43161e+00 1.10057e+00 576 2015 6 3.44114e+00 1.41748e+00 341 2015 7 4.10246e+00 2.25073e+00 128 2015 8 6.86432e+00 3.43790e+00 402 2015 9 8.82672e+00 5.95295e+00 256 2015 10 2.65253e+00 9.17225e-01 808 2015 11 4.39470e+00 1.18177e+00 797 2015 12 2.24632e+00 1.31206e+00 557 2016 1 2.42801e+00 1.68686e+00 558 2016 2 4.88152e+00 3.64013e+00 1093 2016 3 4.96323e+00 2.96270e+00 768 2016 4 4.09449e+00 2.73650e+00 444 2016 5 3.61324e+00 2.05212e+00 591 2016 6 1.84832e+00 6.87813e-01 512 2016 7 2.63096e+00 1.73251e+00 688 2016 8 3.80642e+00 2.91150e+00 731 2016 9 6.00717e+00 2.68326e+00 585 2016 10 2.54761e+00 1.30877e+00 962 2016 11 1.23155e+00 5.78440e-01 896 2016 12 1.56916e+00 6.33949e-01 745 2017 1 1.39437e+00 7.84932e-01 600 2017 2 4.77609e+00 3.21762e+00 921 2017 3 2.66743e+00 2.41047e+00 909 2017 4 1.53165e+00 5.10446e-01 832 2017 5 1.31092e+00 4.23341e-01 545 2017 6 1.83996e+00 1.11480e+00 256 2017 7 4.60630e+00 1.61224e+00 128 2017 8 7.03296e+00 5.53508e+00 576 2017 9 7.51243e+00 8.18850e+00 477 2017 10 1.08690e+01 6.88949e+00 369 2017 11 4.93685e+00 6.54472e+00 1120 2017 12 2.15910e+00 1.02184e+00 622 2018 1 1.65203e+00 5.20163e-01 576 2018 2 2.63872e+00 1.33550e+00 640 2018 3 1.85172e+00 9.58397e-01 795 2018 4 2.27134e+00 1.17613e+00 683 2018 5 1.70377e+00 5.12967e-01 342 2018 6 2.44540e+00 2.06793e+00 253 2018 7 6.31774e+00 5.22278e+00 176 2018 8 8.41841e+00 7.16487e+00 338 2018 9 6.04365e+00 6.37737e+00 658 2018 10 3.80266e+00 1.31544e+00 912 2018 11 3.48164e+00 1.67784e+00 366 2018 12 9.45851e+00 8.76107e+00 679 2019 1 1.76695e+01 1.04850e+01 502 2019 2 2.30659e+01 1.05590e+01 149 2019 3 5.70290e+00 5.30034e+00 581 2019 4 4.84551e+00 2.52676e+00 416 2019 5 2.37499e+00 8.49068e-01 674 2019 6 1.86723e+00 3.31644e-01 97 2019 7 4.06450e+00 1.42590e+00 177 2019 8 1.03097e+01 1.05471e+01 374 2019 9 2.75149e+00 1.39498e+00 673 2019 10 3.14935e+00 7.49497e-01 662 2019 11 1.90503e+00 7.27543e-01 832 2019 12 2.42604e+00 1.29548e+00 604 2020 1 2.08417e+00 1.18043e+00 783 2020 2 1.73397e+00 7.33212e-01 514 2020 3 3.85546e+00 5.17761e+00 582 2020 4 3.09328e+00 1.74640e+00 334 2020 5 3.13373e+00 2.93759e+00 759 2020 6 3.85267e+00 2.08263e+00 383 2020 7 2.36329e+00 6.04418e-01 201 2020 8 5.80155e+00 4.11712e+00 212 2020 9 4.76010e+00 1.96575e+00 317 2020 10 5.90710e+00 4.91182e+00 691 2020 11 4.13672e+00 1.66430e+00 960 2020 12 2.30210e+00 1.21800e+00 841 2021 1 3.37729e+00 1.84107e+00 504 2021 2 5.59241e+00 3.49435e+00 488 2021 3 7.24148e+00 7.88041e+00 417 2021 4 6.05674e+00 3.30072e+00 446 2021 5 4.19672e+00 2.07089e+00 608 2021 6 2.25318e+00 1.00201e+00 192 2021 7 6.51595e+00 6.80659e+00 254 2021 8 1.61508e+01 1.15372e+01 160 2021 9 1.96730e+01 1.46227e+01 159 2021 10 7.95467e+00 5.93418e+00 525 2021 11 3.23794e+00 1.25032e+00 974 2021 12 3.44176e+00 1.75507e+00 674 2022 1 3.54972e+00 1.79514e+00 840 2022 2 3.63654e+00 2.63531e+00 918 2022 3 3.14562e+00 2.12304e+00 864 2022 4 1.71633e+01 9.11414e+00 42 2022 5 6.01238e+00 5.13814e+00 383 2022 6 4.07021e+00 2.59417e+00 448 2022 7 4.30055e+00 2.73732e+00 468 2022 8 6.42787e+00 4.09944e+00 430 2022 9 7.01237e+00 7.48231e+00 320 2022 10 1.37171e+00 2.87735e+00 1111 2022 11 2.90583e+00 2.19253e+00 539 2022 12 2.36096e+00 1.24536e+00 848 2023 1 1.64114e+00 7.66616e-01 890 2023 2 1.99731e+00 9.16751e-01 706 2023 3 4.53792e+00 2.59762e+00 768 2023 4 4.87064e+00 2.47327e+00 384 2023 5 2.90201e+00 1.25239e+00 384 2023 6 2.04292e+00 7.82456e-01 314 2023 7 7.74512e+00 9.92314e+00 556 2023 8 5.74110e+00 4.92000e+00 320 2023 9 7.56299e+00 8.21902e+00 526 2023 10 5.01633e+00 4.11341e+00 767 2023 11 1.83619e+00 8.50717e-01 720 2023 12 3.08139e+00 1.83137e+00 285 2024 1 1.72382e+01 9.36483e+00 457 2024 2 1.10848e+01 8.84280e+00 618 2024 3 8.35821e+00 5.19166e+00 537 2024 4 nan nan 0