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 1.75056e+01 3.75506e+00 256 2002 8 2.35831e+01 9.64697e+00 384 2002 9 1.73979e+01 1.03442e+01 508 2002 10 1.56467e+01 6.10444e+00 768 2002 11 1.09761e+01 6.46031e+00 960 2002 12 7.45589e+00 3.74714e+00 768 2003 1 3.76584e+00 2.42359e+00 1076 2003 2 8.01876e+00 3.33246e+00 578 2003 3 2.24953e-01 4.08879e-01 85 2003 4 6.49761e+00 1.35751e+01 48 2003 5 6.74104e-01 7.82309e-01 99 2003 6 2.58981e+01 2.48314e+01 239 2003 7 3.36720e+00 3.01566e+00 96 2003 8 2.86381e+01 9.21814e+00 192 2003 9 1.86624e+01 1.74627e+01 452 2003 10 1.31197e+01 1.31755e+01 840 2003 11 1.17565e+01 6.09475e+00 1142 2003 12 5.89443e+00 4.44018e+00 896 2004 1 1.11025e+01 7.27607e+00 845 2004 2 9.76818e+00 4.69813e+00 192 2004 3 3.62334e+00 3.46300e+00 615 2004 4 4.99314e+00 2.87037e+00 501 2004 5 8.11052e+00 4.80415e+00 542 2004 6 1.43366e+01 6.81594e+00 329 2004 7 7.83058e+00 5.53287e+00 386 2004 8 1.90792e+01 1.52231e+01 416 2004 9 7.18573e+00 8.97794e+00 281 2004 10 9.87214e+00 1.90927e+01 304 2004 11 3.06757e+00 7.51888e+00 418 2004 12 6.96243e-01 1.25915e+00 579 2005 1 6.33195e+00 7.73409e+00 831 2005 2 1.81499e+00 1.62811e+00 549 2005 3 3.24364e+00 2.73227e+00 640 2005 4 1.04462e+01 1.78954e+01 353 2005 5 1.96029e+01 1.88604e+01 390 2005 6 1.03907e+01 1.09632e+01 442 2005 7 7.23719e+00 1.06802e+01 356 2005 8 7.91860e-01 1.03621e+00 61 2005 9 6.28072e+00 4.66732e+00 385 2005 10 1.20781e+01 8.38841e+00 972 2005 11 9.09266e+00 5.48732e+00 1080 2005 12 9.11847e+00 5.06018e+00 1044 2006 1 6.56422e+00 5.61297e+00 791 2006 2 2.54533e+00 3.14539e+00 768 2006 3 5.86975e+00 9.74055e+00 712 2006 4 2.42204e+00 2.24633e+00 258 2006 5 1.54672e+01 9.50261e+00 639 2006 6 1.52219e+01 1.11295e+01 383 2006 7 1.10021e+01 1.09092e+01 411 2006 8 1.38819e+01 8.38657e+00 289 2006 9 1.21733e+01 7.62481e+00 567 2006 10 1.34911e+01 5.69130e+00 853 2006 11 1.49578e+01 6.21074e+00 822 2006 12 1.53979e+01 9.15955e+00 574 2007 1 1.71867e+01 4.76499e+00 498 2007 2 1.66409e+01 7.27121e+00 766 2007 3 1.48732e+01 5.31241e+00 1153 2007 4 1.16153e+01 5.77534e+00 764 2007 5 1.88282e+01 3.99465e+00 249 2007 6 2.01126e+01 5.20988e+00 510 2007 7 1.02323e+01 3.54183e+00 442 2007 8 1.38599e+01 7.72165e+00 494 2007 9 1.67119e+01 3.87269e+00 500 2007 10 2.43322e+01 4.06277e+00 692 2007 11 2.42018e+01 3.81012e+00 1145 2007 12 2.45520e+01 9.63956e+00 824 2008 1 2.25970e+01 7.20304e+00 832 2008 2 2.09785e+01 6.21003e+00 1079 2008 3 1.30943e+01 1.08728e+01 806 2008 4 1.73071e+01 2.35109e+01 450 2008 5 8.51069e+00 6.47233e+00 546 2008 6 7.67698e+00 5.76598e+00 360 2008 7 1.48314e+01 9.45558e+00 490 2008 8 9.59901e+00 2.35973e+00 192 2008 9 8.91125e+00 1.03900e+01 600 2008 10 7.99903e+00 6.17001e+00 956 2008 11 7.61485e+00 3.54425e+00 953 2008 12 5.42263e+00 4.07952e+00 862 2009 1 6.97891e+00 5.23873e+00 640 2009 2 6.12363e+00 3.67011e+00 971 2009 3 1.22793e+01 4.97820e+00 939 2009 4 5.60316e+00 4.21224e+00 528 2009 5 1.27135e+01 1.13906e+01 202 2009 6 1.37207e+01 1.20081e+01 434 2009 7 1.30305e+01 1.49531e+01 385 2009 8 6.46607e+00 7.40408e+00 536 2009 9 1.48168e+01 1.30040e+01 651 2009 10 1.23685e+01 5.82779e+00 772 2009 11 1.04781e+01 5.22690e+00 702 2009 12 1.16107e+01 5.32795e+00 256 2010 1 2.51834e+00 2.61114e+00 926 2010 2 3.25645e+00 6.86727e+00 651 2010 3 1.15902e+00 3.05423e+00 834 2010 4 2.95061e+00 3.78308e+00 219 2010 5 1.11992e+01 1.62420e+01 493 2010 6 1.13854e+01 6.06341e+00 592 2010 7 1.21739e+01 9.78585e+00 384 2010 8 1.08604e+01 8.03299e+00 260 2010 9 1.15260e+01 1.15221e+01 638 2010 10 7.14916e+00 5.86038e+00 1514 2010 11 1.40383e+01 6.08387e+00 1149 2010 12 1.25386e+01 6.88148e+00 1095 2011 1 1.76521e+01 6.36683e+00 804 2011 2 1.51521e+01 3.93433e+00 770 2011 3 1.11676e+01 3.45684e+00 876 2011 4 8.63215e+00 5.87690e+00 871 2011 5 9.30873e+00 5.35205e+00 680 2011 6 1.00575e+01 5.07343e+00 239 2011 7 9.96948e+00 5.82341e+00 397 2011 8 1.58013e+01 9.00161e+00 693 2011 9 1.48379e+01 8.29205e+00 802 2011 10 1.75211e+01 6.87408e+00 1065 2011 11 2.50498e+01 6.66922e+00 1049 2011 12 2.72449e+01 4.28729e+00 1064 2012 1 1.94492e+01 7.76279e+00 1102 2012 2 2.53845e+01 6.76441e+00 328 2012 3 1.59843e+01 6.79591e+00 940 2012 4 1.60807e+01 6.07675e+00 937 2012 5 1.70961e+01 4.32562e+00 512 2012 6 1.04374e+01 7.98359e+00 312 2012 7 5.21491e-02 8.40519e-02 58 2012 8 1.81451e+00 1.34052e+00 184 2012 9 6.71623e+00 7.99622e+00 476 2012 10 5.94996e+00 1.07490e+01 857 2012 11 6.10949e+00 7.47594e+00 1006 2012 12 5.33215e+00 4.07182e+00 690 2013 1 1.22970e+01 9.09085e+00 704 2013 2 1.36980e+01 6.73624e+00 585 2013 3 6.24319e+00 4.85695e+00 684 2013 4 1.36629e+01 1.64553e+01 433 2013 5 5.98547e+00 4.84948e+00 477 2013 6 1.98227e+01 2.49207e+01 236 2013 7 7.79230e+00 4.94936e+00 192 2013 8 5.74643e+00 8.09364e+00 163 2013 9 1.35130e+01 1.63655e+01 650 2013 10 1.83765e+01 1.68973e+01 819 2013 11 8.51042e+00 5.98052e+00 535 2013 12 1.19293e+01 5.55601e+00 640 2014 1 1.08177e+01 5.26985e+00 622 2014 2 4.94410e+00 2.85385e+00 757 2014 3 4.15745e+00 4.43849e+00 531 2014 4 1.44641e+00 5.16772e+00 160 2014 5 4.16786e-02 5.75374e-02 106 2014 6 1.68475e+01 1.51998e+01 192 2014 7 8.25645e+00 9.86744e+00 513 2014 8 8.37145e+00 8.43994e+00 320 2014 9 2.48345e+01 1.21635e+01 431 2014 10 8.39031e+00 8.48684e+00 1397 2014 11 9.44380e+00 5.75123e+00 1024 2014 12 1.64775e+01 8.59560e+00 843 2015 1 1.57528e+01 8.95676e+00 828 2015 2 1.09683e+01 8.20872e+00 830 2015 3 8.85408e+00 8.19310e+00 421 2015 4 5.40116e-01 9.39705e-01 105 2015 5 7.10795e+00 1.20792e+01 639 2015 6 1.36649e+01 1.23823e+01 486 2015 7 1.92659e+01 1.46743e+01 204 2015 8 8.49535e+00 5.22946e+00 364 2015 9 1.05949e+01 1.06354e+01 320 2015 10 7.08754e+00 4.92749e+00 808 2015 11 6.08854e+00 6.00943e+00 625 2015 12 1.21608e+01 8.02838e+00 547 2016 1 1.21237e+01 5.60684e+00 656 2016 2 6.54955e+00 5.16486e+00 1216 2016 3 3.88317e+00 3.56564e+00 672 2016 4 9.12699e+00 1.35431e+01 355 2016 5 4.21887e+00 4.75215e+00 636 2016 6 8.71648e+00 7.62337e+00 555 2016 7 7.49125e+00 8.24075e+00 745 2016 8 1.10501e+01 1.05630e+01 787 2016 9 1.46232e+01 1.83401e+01 858 2016 10 1.40851e+01 7.04722e+00 894 2016 11 1.39189e+01 6.85752e+00 954 2016 12 1.69260e+01 6.09436e+00 797 2017 1 1.91527e+01 7.59954e+00 768 2017 2 1.07710e+01 5.15196e+00 1088 2017 3 1.31997e+01 7.40653e+00 958 2017 4 8.59033e+00 5.30283e+00 767 2017 5 6.97753e+00 4.56255e+00 508 2017 6 2.18134e+01 1.14772e+01 437 2017 7 2.37565e+01 6.54146e+00 156 2017 8 1.73228e+01 1.40566e+01 644 2017 9 8.35539e+00 7.11610e+00 588 2017 10 9.17170e-01 2.45497e+00 441 2017 11 1.10306e+01 6.86487e+00 1042 2017 12 1.33165e+01 5.72469e+00 701 2018 1 1.29297e+01 4.67943e+00 601 2018 2 1.10348e+01 6.01913e+00 417 2018 3 7.70739e+00 4.92677e+00 784 2018 4 4.46262e+00 6.62963e+00 637 2018 5 7.45166e+00 6.02455e+00 481 2018 6 7.04592e+00 7.00402e+00 346 2018 7 2.72220e+01 1.57626e+01 237 2018 8 4.60811e+00 4.25175e+00 256 2018 9 1.54564e+01 1.25928e+01 888 2018 10 1.47536e+01 1.40109e+01 993 2018 11 5.51933e+00 8.80287e+00 294 2018 12 3.27290e+00 3.25469e+00 763 2019 1 3.66454e+00 1.04351e+01 683 2019 2 1.85919e+01 1.18476e+01 215 2019 3 4.30236e+00 4.68269e+00 540 2019 4 1.02531e+00 9.49493e-01 297 2019 5 1.07558e+01 9.34986e+00 884 2019 6 7.52195e+00 3.30369e+00 143 2019 7 1.32142e+01 9.76963e+00 447 2019 8 1.18553e+01 1.77045e+01 600 2019 9 1.17555e+01 9.10748e+00 671 2019 10 1.09359e+01 9.04199e+00 702 2019 11 9.21219e+00 5.81111e+00 768 2019 12 1.02979e+01 5.60777e+00 554 2020 1 1.01380e+01 2.64622e+00 532 2020 2 1.09016e+01 5.98650e+00 667 2020 3 7.36050e+00 6.59344e+00 609 2020 4 4.40373e+00 3.73999e+00 626 2020 5 7.08497e+00 5.99089e+00 597 2020 6 2.88432e+00 3.22444e+00 618 2020 7 1.01303e+01 1.20029e+01 297 2020 8 6.17120e+00 5.42763e+00 246 2020 9 3.13183e+00 3.49681e+00 254 2020 10 1.31337e+01 1.55614e+01 696 2020 11 6.28024e+00 9.92246e+00 770 2020 12 5.47598e+00 5.74428e+00 534 2021 1 4.10556e+00 3.06866e+00 512 2021 2 4.98607e-01 5.22494e-01 448 2021 3 1.82980e+00 2.98120e+00 380 2021 4 1.92282e+00 8.60898e-01 138 2021 5 5.90530e+00 9.58834e+00 498 2021 6 2.44334e+01 2.11156e+01 209 2021 7 3.39119e+01 4.62490e+00 59 2021 8 4.42867e+01 3.37033e+01 131 2021 9 7.98027e+00 1.23816e+01 557 2021 10 7.41083e+00 9.56007e+00 653 2021 11 2.36730e+00 4.09762e+00 661 2021 12 8.00560e+00 1.42818e+01 469 2022 1 2.70716e+00 2.20542e+00 1025 2022 2 4.63897e+00 2.78679e+00 775 2022 3 3.75054e+00 3.22154e+00 755 2022 4 1.02844e+00 5.68696e-01 80 2022 5 8.64287e+00 1.45780e+01 429 2022 6 1.35120e+01 7.53260e+00 496 2022 7 2.81553e+01 1.70623e+01 156 2022 8 1.76850e+01 1.01107e+01 429 2022 9 1.49617e+01 1.12144e+01 444 2022 10 6.52742e+00 6.54627e+00 1352 2022 11 1.62637e+01 6.31814e+00 456 2022 12 1.27633e+01 7.32017e+00 1141 2023 1 1.37854e+01 4.71653e+00 903 2023 2 1.61376e+01 4.87281e+00 688 2023 3 1.20455e+01 6.44824e+00 806 2023 4 1.43387e+01 1.04098e+01 371 2023 5 1.22442e+01 8.13730e+00 384 2023 6 2.32294e+01 4.73006e+00 299 2023 7 1.28268e+01 9.04122e+00 414 2023 8 1.84290e+01 1.55412e+01 528 2023 9 1.06120e+01 1.30447e+01 457 2023 10 1.20299e+01 1.14206e+01 714 2023 11 1.11164e+01 8.61759e+00 619 2023 12 7.20898e+00 4.99491e+00 405 2024 1 2.38049e+00 2.50296e+00 510 2024 2 4.50600e+00 3.78241e+00 513 2024 3 1.00891e+00 7.57352e-01 99 2024 4 nan nan 0