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 2.78887e+01 5.46048e+00 319 2002 8 1.64420e+01 3.10038e+00 246 2002 9 8.39698e+00 2.66211e+00 192 2002 10 1.12374e+01 2.83991e+00 709 2002 11 8.18204e+00 3.10843e+00 296 2002 12 7.13764e+00 3.56919e+00 542 2003 1 7.10509e+00 2.40743e+00 502 2003 2 9.80140e+00 3.49976e+00 605 2003 3 1.68486e+01 4.37360e+00 661 2003 4 1.98019e+01 3.21092e+00 317 2003 5 2.69098e+01 4.48917e+00 707 2003 6 2.14017e+01 3.03111e+00 346 2003 7 2.49250e+01 4.71657e+00 359 2003 8 2.15688e+01 7.38580e+00 380 2003 9 1.55181e+01 3.10472e+00 218 2003 10 8.51847e+00 3.11478e+00 470 2003 11 5.80120e+00 1.83786e+00 736 2003 12 1.05497e+01 4.29008e+00 348 2004 1 8.79099e+00 3.71055e+00 749 2004 2 1.37334e+01 4.51827e+00 823 2004 3 1.41298e+01 3.52417e+00 858 2004 4 1.91465e+01 6.45413e+00 605 2004 5 1.56177e+01 5.25119e+00 642 2004 6 2.32535e+01 4.17710e+00 676 2004 7 1.84339e+01 5.63935e+00 702 2004 8 1.48635e+01 4.44750e+00 259 2004 9 9.08445e+00 4.77043e+00 265 2004 10 1.06218e+01 3.12370e+00 566 2004 11 1.02323e+01 2.87300e+00 791 2004 12 8.77954e+00 4.22646e+00 610 2005 1 8.26280e+00 3.91764e+00 1145 2005 2 1.11196e+01 4.36258e+00 776 2005 3 1.81551e+01 6.32773e+00 593 2005 4 1.86608e+01 5.93613e+00 758 2005 5 2.13431e+01 4.05371e+00 305 2005 6 2.21436e+01 6.54543e+00 158 2005 7 2.18402e+01 7.73891e+00 448 2005 8 2.36054e+01 6.11303e+00 503 2005 9 2.08266e+01 7.38023e+00 492 2005 10 1.29678e+01 4.27061e+00 315 2005 11 5.80971e+00 2.89257e+00 610 2005 12 5.07702e+00 6.26500e-01 64 2006 1 8.69256e+00 3.66603e+00 281 2006 2 1.07865e+01 5.81791e+00 761 2006 3 2.29601e+01 3.83001e+00 829 2006 4 2.20577e+01 5.05992e+00 749 2006 5 1.97377e+01 4.47458e+00 549 2006 6 2.87549e+01 7.30941e+00 803 2006 7 2.34891e+01 3.97787e+00 133 2006 8 2.75630e+01 8.47341e+00 210 2006 9 1.69208e+01 2.76923e+00 219 2006 10 1.33346e+01 4.80978e+00 326 2006 11 8.77226e+00 2.30410e+00 422 2006 12 5.33464e+00 1.58310e+00 332 2007 1 9.34218e+00 3.03843e+00 740 2007 2 1.17064e+01 3.50519e+00 433 2007 3 1.73140e+01 6.42477e+00 719 2007 4 2.23286e+01 8.20664e+00 593 2007 5 2.07779e+01 6.27971e+00 379 2007 6 2.80354e+01 4.86773e+00 204 2007 7 2.80012e+01 4.63371e+00 372 2007 8 2.10952e+01 4.56059e+00 502 2007 9 1.64824e+01 7.86335e+00 241 2007 10 9.85902e+00 4.06578e+00 116 2007 11 8.81943e+00 2.57559e+00 610 2007 12 1.08430e+01 5.24383e+00 1125 2008 1 9.92140e+00 2.99552e+00 645 2008 2 1.27014e+01 3.20994e+00 1007 2008 3 1.73842e+01 6.37683e+00 698 2008 4 2.12419e+01 5.84597e+00 538 2008 5 2.22067e+01 5.14957e+00 504 2008 6 2.24505e+01 7.93252e+00 339 2008 7 1.99975e+01 4.73984e+00 339 2008 8 1.51121e+01 7.29398e+00 448 2008 9 1.49211e+01 6.43644e+00 205 2008 10 1.81282e+01 2.90486e+00 241 2008 11 1.25097e+01 4.53530e+00 836 2008 12 1.00487e+01 2.63413e+00 801 2009 1 9.02201e+00 3.78956e+00 728 2009 2 1.49757e+01 6.06554e+00 752 2009 3 2.26738e+01 5.27038e+00 887 2009 4 2.32650e+01 2.89038e+00 258 2009 5 2.86575e+01 3.84404e+00 365 2009 6 2.88653e+01 7.39587e+00 356 2009 7 2.29561e+01 6.26198e+00 389 2009 8 1.86537e+01 4.38197e+00 385 2009 9 1.86754e+01 4.36233e+00 536 2009 10 1.21442e+01 4.02710e+00 825 2009 11 8.57448e+00 1.76643e+00 275 2009 12 7.61119e+00 1.99871e+00 656 2010 1 1.02420e+01 2.74168e+00 381 2010 2 7.81627e+00 3.60374e+00 315 2010 3 1.06573e+01 2.16285e+00 509 2010 4 2.58706e+01 4.80647e+00 550 2010 5 2.65613e+01 5.66990e+00 563 2010 6 2.44785e+01 4.72257e+00 512 2010 7 2.52636e+01 4.31716e+00 267 2010 8 2.16687e+01 4.93017e+00 348 2010 9 2.15394e+01 5.35085e+00 453 2010 10 1.34117e+01 4.00400e+00 638 2010 11 1.05772e+01 3.92787e+00 713 2010 12 5.98638e+00 2.35948e+00 604 2011 1 7.20950e+00 2.56805e+00 630 2011 2 1.05369e+01 3.60637e+00 816 2011 3 2.28122e+01 5.78036e+00 897 2011 4 2.49461e+01 6.62848e+00 679 2011 5 2.47307e+01 6.03674e+00 691 2011 6 2.22105e+01 5.59721e+00 361 2011 7 2.42336e+01 7.66943e+00 533 2011 8 1.97717e+01 4.48095e+00 553 2011 9 1.99417e+01 7.22364e+00 415 2011 10 1.87289e+01 7.83340e+00 283 2011 11 6.77584e+00 3.14430e+00 837 2011 12 7.96413e+00 3.34954e+00 832 2012 1 1.02730e+01 4.88635e+00 768 2012 2 1.39438e+01 4.08726e+00 492 2012 3 1.77250e+01 4.46600e+00 608 2012 4 2.21134e+01 7.75006e+00 503 2012 5 2.43628e+01 5.84475e+00 690 2012 6 2.37125e+01 6.15402e+00 378 2012 7 2.34376e+01 5.06238e+00 379 2012 8 2.49707e+01 3.52664e+00 174 2012 9 1.73404e+01 4.06323e+00 467 2012 10 1.10955e+01 5.58797e+00 487 2012 11 7.18274e+00 3.11710e+00 766 2012 12 8.14207e+00 3.02339e+00 707 2013 1 1.08796e+01 1.78635e+00 638 2013 2 1.51061e+01 4.69922e+00 990 2013 3 1.54721e+01 5.31533e+00 407 2013 4 2.12606e+01 7.46775e+00 448 2013 5 2.39234e+01 3.50742e+00 704 2013 6 2.63070e+01 5.80137e+00 326 2013 7 2.26573e+01 4.33755e+00 254 2013 8 1.87638e+01 4.48631e+00 404 2013 9 1.18582e+01 4.00677e+00 321 2013 10 1.33998e+01 4.12788e+00 695 2013 11 7.07649e+00 2.93380e+00 431 2013 12 7.88691e+00 1.72054e+00 657 2014 1 1.12886e+01 5.10656e+00 422 2014 2 1.66684e+01 3.15922e+00 879 2014 3 1.53547e+01 3.01302e+00 605 2014 4 2.26733e+01 4.50142e+00 576 2014 5 2.34748e+01 5.51868e+00 320 2014 6 2.32260e+01 4.73705e+00 442 2014 7 2.43088e+01 7.57528e+00 324 2014 8 1.86520e+01 6.31986e+00 309 2014 9 1.65204e+01 5.74225e+00 188 2014 10 1.26587e+01 4.19778e+00 458 2014 11 9.53483e+00 4.13820e+00 893 2014 12 7.23051e+00 3.04083e+00 697 2015 1 8.22215e+00 3.72681e+00 498 2015 2 1.01999e+01 3.88843e+00 526 2015 3 1.97985e+01 4.19896e+00 980 2015 4 2.20396e+01 2.45190e+00 567 2015 5 2.23292e+01 3.82092e+00 496 2015 6 2.12942e+01 6.98468e+00 330 2015 7 2.04836e+01 6.21630e+00 399 2015 8 1.86399e+01 4.10755e+00 399 2015 9 1.61082e+01 4.60447e+00 268 2015 10 1.12002e+01 4.82301e+00 440 2015 11 7.66333e+00 5.33135e+00 884 2015 12 9.83495e+00 3.76993e+00 434 2016 1 1.36313e+01 1.28181e+00 22 2016 2 1.01331e+01 4.45561e+00 543 2016 3 1.85538e+01 6.73624e+00 446 2016 4 1.57752e+01 5.53279e+00 557 2016 5 1.64792e+01 7.22177e+00 548 2016 6 2.07707e+01 9.11941e+00 588 2016 7 2.80479e+01 6.45678e+00 696 2016 8 2.38828e+01 2.85400e+00 471 2016 9 1.86154e+01 3.03918e+00 801 2016 10 7.42280e+00 3.93974e+00 548 2016 11 7.45894e+00 3.41083e+00 1021 2016 12 6.83387e+00 2.73150e+00 778 2017 1 7.63131e+00 3.41458e+00 520 2017 2 1.22665e+01 2.23743e+00 586 2017 3 1.47297e+01 4.43319e+00 608 2017 4 1.98044e+01 4.88239e+00 384 2017 5 2.30372e+01 4.73714e+00 550 2017 6 2.22057e+01 5.64019e+00 299 2017 7 1.94578e+01 6.45502e+00 176 2017 8 2.43455e+01 5.55657e+00 424 2017 9 2.07467e+01 6.13326e+00 400 2017 10 8.08738e+00 4.51904e+00 385 2017 11 7.10919e+00 3.13941e+00 595 2017 12 6.42194e+00 2.14752e+00 1023 2018 1 1.21711e+01 2.95343e+00 158 2018 2 1.77565e+01 7.43824e+00 635 2018 3 1.67315e+01 5.99178e+00 768 2018 4 1.57220e+01 6.56046e+00 436 2018 5 1.99750e+01 7.88449e+00 384 2018 6 2.89889e+01 5.96648e+00 384 2018 7 2.65283e+01 5.19590e+00 808 2018 8 1.23914e+01 6.08292e+00 346 2018 9 1.59324e+01 6.31983e+00 650 2018 10 5.79140e+00 2.41279e+00 788 2018 11 9.09528e+00 3.86811e+00 565 2018 12 7.67692e+00 3.41522e+00 527 2019 1 9.16521e+00 3.42713e+00 594 2019 2 1.84254e+01 6.83284e+00 924 2019 3 1.82865e+01 5.18247e+00 870 2019 4 1.81576e+01 5.09452e+00 602 2019 5 2.24369e+01 6.14766e+00 697 2019 6 2.65674e+01 3.49875e+00 561 2019 7 2.52196e+01 5.63391e+00 687 2019 8 2.09336e+01 4.39172e+00 238 2019 9 1.43166e+01 6.59586e+00 368 2019 10 1.00376e+01 3.62470e+00 582 2019 11 9.53139e+00 3.34787e+00 625 2019 12 8.20501e+00 2.21496e+00 580 2020 1 5.73941e+00 2.24800e+00 448 2020 2 1.01447e+01 5.14822e+00 457 2020 3 1.52322e+01 4.21722e+00 851 2020 4 2.49110e+01 5.82663e+00 384 2020 5 1.73885e+01 5.42892e+00 319 2020 6 2.16463e+01 4.21014e+00 429 2020 7 2.07919e+01 5.48798e+00 384 2020 8 2.41148e+01 5.61529e+00 596 2020 9 1.59863e+01 7.14388e+00 302 2020 10 1.12098e+01 2.13388e+00 292 2020 11 8.15757e+00 4.28300e+00 411 2020 12 6.67298e+00 3.03546e+00 652 2021 1 7.18493e+00 3.02636e+00 575 2021 2 1.63821e+01 6.62662e+00 639 2021 3 1.57381e+01 5.89736e+00 994 2021 4 2.00486e+01 7.99874e+00 768 2021 5 2.51286e+01 6.97770e+00 561 2021 6 1.62334e+01 5.15945e+00 305 2021 7 2.50532e+01 7.56687e+00 421 2021 8 2.19330e+01 5.69268e+00 325 2021 9 1.58648e+01 3.12776e+00 576 2021 10 1.01050e+01 3.80878e+00 529 2021 11 1.12767e+01 2.71494e+00 271 2021 12 1.08946e+01 3.05857e+00 968 2022 1 7.52178e+00 2.64708e+00 609 2022 2 1.26065e+01 5.01966e+00 943 2022 3 1.86035e+01 7.36509e+00 584 2022 4 2.56866e+01 7.35405e+00 256 2022 5 2.85072e+01 7.15295e+00 415 2022 6 2.19455e+01 5.47358e+00 576 2022 7 2.01261e+01 9.46044e+00 606 2022 8 1.96700e+01 5.22454e+00 396 2022 9 1.13824e+01 4.10647e+00 334 2022 10 1.09527e+01 4.72198e+00 675 2022 11 9.93873e+00 3.30726e+00 424 2022 12 8.70676e+00 3.06742e+00 783 2023 1 6.19594e+00 4.09237e+00 332 2023 2 1.37234e+01 5.70376e+00 833 2023 3 2.31790e+01 5.53658e+00 704 2023 4 2.64702e+01 5.67731e+00 228 2023 5 2.28357e+01 6.17076e+00 712 2023 6 2.34580e+01 7.31048e+00 538 2023 7 1.92494e+01 6.82134e+00 557 2023 8 2.30514e+01 9.27223e+00 263 2023 9 1.58551e+01 5.58988e+00 491 2023 10 5.26307e+00 4.19592e+00 541 2023 11 9.32888e+00 5.06996e+00 281 2023 12 7.19888e+00 2.56727e+00 365 2024 1 9.70528e+00 1.56926e+00 345 2024 2 9.94356e+00 6.57452e+00 707 2024 3 1.91108e+01 8.83375e+00 448 2024 4 3.42251e+01 1.69809e+00 64