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 2.75821e+00 2.68111e-01 192 2002 8 2.01997e+00 5.52928e-01 376 2002 9 4.97576e+00 1.46795e+00 416 2002 10 3.33488e+00 1.33701e+00 931 2002 11 2.97097e+00 8.08760e-01 697 2002 12 4.64862e+00 2.07296e+00 746 2003 1 1.01668e+01 3.37752e+00 1023 2003 2 2.88334e+00 6.04575e-01 552 2003 3 1.45813e+00 6.09308e-01 320 2003 4 1.79829e+00 6.20940e-01 630 2003 5 1.33516e+00 2.78218e-01 361 2003 6 4.09516e+00 1.96641e+00 105 2003 7 3.27642e+00 2.03827e-01 64 2003 8 9.61495e+00 6.09959e+00 183 2003 9 6.14698e+00 1.70677e+00 313 2003 10 4.66326e+00 8.00288e-01 525 2003 11 3.63620e+00 1.52713e+00 888 2003 12 3.54971e+00 9.31634e-01 710 2004 1 2.65624e+00 1.17843e+00 839 2004 2 2.46600e+00 4.00643e-01 469 2004 3 1.99670e+00 5.74721e-01 640 2004 4 2.46545e+00 1.13671e+00 436 2004 5 1.62387e+00 3.27379e-01 410 2004 6 2.05857e+00 3.10301e-01 268 2004 7 2.97954e+00 7.25225e-01 163 2004 8 4.64474e+00 1.31204e+00 179 2004 9 7.46974e+00 3.27644e+00 339 2004 10 9.35696e+00 3.64953e+00 572 2004 11 6.62233e+00 2.29842e+00 725 2004 12 1.10371e+01 8.26193e+00 384 2005 1 6.80165e+00 2.51359e+00 593 2005 2 3.87447e+00 1.57759e+00 689 2005 3 3.52005e+00 6.14122e-01 576 2005 4 3.69320e+00 1.61401e+00 626 2005 5 1.47962e+00 4.29846e-01 358 2005 6 3.57685e+00 8.89621e-01 191 2005 7 2.67551e+00 1.26356e+00 242 2005 8 2.79491e+00 8.75841e-01 354 2005 9 2.92872e+00 5.16590e-01 365 2005 10 3.86052e+00 1.36575e+00 578 2005 11 3.33581e+00 6.25635e-01 780 2005 12 2.41236e+00 5.23999e-01 816 2006 1 2.60254e+00 7.32479e-01 466 2006 2 2.61553e+00 6.76227e-01 896 2006 3 1.94130e+00 3.19557e-01 1070 2006 4 1.38149e+00 3.49724e-01 673 2006 5 1.44057e+00 2.15718e-01 465 2006 6 2.18093e+00 7.47754e-01 493 2006 7 2.43543e+00 3.19086e-01 189 2006 8 2.96573e+00 1.94925e+00 189 2006 9 9.04516e+00 5.55876e+00 598 2006 10 4.23023e+00 1.23381e+00 929 2006 11 3.07374e+00 6.99927e-01 743 2006 12 2.40892e+00 1.04571e+00 387 2007 1 2.55207e+00 3.79493e-01 437 2007 2 1.98000e+00 8.52862e-01 576 2007 3 1.63543e+00 3.81094e-01 658 2007 4 2.39605e+00 1.46370e+00 537 2007 5 1.49033e+00 3.84121e-01 383 2007 6 1.76068e+00 3.71963e-01 176 2007 7 2.15982e+00 2.79784e-01 361 2007 8 3.22142e+00 4.71900e-01 429 2007 9 4.00195e+00 2.29885e+00 448 2007 10 3.27495e+00 8.92793e-01 351 2007 11 2.54302e+00 6.75939e-01 907 2007 12 2.53727e+00 5.87568e-01 997 2008 1 3.79454e+00 1.58676e+00 639 2008 2 2.57748e+00 3.17362e-01 642 2008 3 2.54670e+00 8.65748e-01 590 2008 4 1.80139e+00 3.72943e-01 536 2008 5 1.86030e+00 4.11110e-01 503 2008 6 2.51354e+00 5.00907e-01 480 2008 7 2.18087e+00 2.16541e-01 192 2008 8 2.62683e+00 5.84103e-01 250 2008 9 2.25920e+00 6.15327e-01 304 2008 10 2.42077e+00 8.19190e-01 865 2008 11 3.50033e+00 8.64104e-01 1097 2008 12 2.65442e+00 1.07504e+00 868 2009 1 2.89970e+00 8.77335e-01 850 2009 2 2.87549e+00 8.72997e-01 772 2009 3 2.08971e+00 6.96979e-01 974 2009 4 2.42179e+00 7.69581e-01 271 2009 5 1.60921e+00 2.79486e-01 446 2009 6 2.43274e+00 6.28863e-01 195 2009 7 3.55446e+00 5.47521e-01 384 2009 8 3.04987e+00 6.88385e-01 411 2009 9 5.16573e+00 3.42271e+00 517 2009 10 4.40112e+00 2.03441e+00 675 2009 11 6.57513e+00 2.86465e+00 737 2009 12 3.62036e+00 8.48948e-01 427 2010 1 3.33025e+00 1.00842e+00 576 2010 2 5.40735e+00 2.11031e+00 583 2010 3 4.02646e+00 1.71269e+00 861 2010 4 1.90315e+00 2.73279e-01 623 2010 5 2.45737e+00 6.11499e-01 492 2010 6 1.92401e+00 4.72845e-01 524 2010 7 1.57432e+00 9.70296e-02 98 2010 8 2.64614e+00 8.41547e-01 262 2010 9 3.34164e+00 8.71152e-01 445 2010 10 4.12945e+00 1.06724e+00 1459 2010 11 4.47171e+00 2.47111e+00 1024 2010 12 4.72336e+00 1.97231e+00 1006 2011 1 2.48704e+00 5.03026e-01 648 2011 2 2.36951e+00 4.49395e-01 840 2011 3 2.12128e+00 7.63398e-01 984 2011 4 2.02695e+00 3.64490e-01 775 2011 5 1.51791e+00 3.08092e-01 570 2011 6 1.85625e+00 3.69555e-01 371 2011 7 2.04262e+00 4.98282e-01 255 2011 8 2.64162e+00 5.33740e-01 226 2011 9 3.20694e+00 8.89949e-01 197 2011 10 4.74448e+00 9.38757e-01 671 2011 11 5.39156e+00 1.47888e+00 970 2011 12 2.12619e+00 7.87755e-01 1108 2012 1 2.23624e+00 3.63896e-01 789 2012 2 2.37279e+00 8.85102e-01 622 2012 3 1.85515e+00 4.32258e-01 860 2012 4 1.62862e+00 3.01465e-01 547 2012 5 1.49338e+00 1.45194e-01 384 2012 6 8.28912e+00 1.26145e+00 122 2012 7 5.32251e+00 6.47527e-01 192 2012 8 3.44443e+00 2.80183e-01 192 2012 9 4.08255e+00 1.31980e+00 333 2012 10 5.43676e+00 2.48507e+00 424 2012 11 3.80210e+00 7.72249e-01 648 2012 12 4.91316e+00 2.85348e+00 436 2013 1 2.82199e+00 5.43045e-01 750 2013 2 2.56827e+00 6.52636e-01 759 2013 3 2.45638e+00 6.28297e-01 792 2013 4 1.74419e+00 2.33678e-01 447 2013 5 1.74757e+00 2.91412e-01 578 2013 6 2.90914e+00 7.83957e-01 384 2013 7 4.56407e+00 1.65092e+00 304 2013 8 3.07857e+00 7.08251e-01 359 2013 9 2.72559e+00 1.06559e+00 645 2013 10 2.32222e+00 7.79330e-01 780 2013 11 3.03314e+00 1.03741e+00 72 2013 12 3.57487e+00 1.35143e+00 634 2014 1 3.71469e+00 1.27198e+00 576 2014 2 2.75351e+00 6.36817e-01 704 2014 3 2.17850e+00 5.75453e-01 670 2014 4 1.42875e+00 3.40344e-01 499 2014 5 1.63624e+00 3.39716e-01 501 2014 6 1.61203e+00 3.35750e-01 558 2014 7 1.77921e+00 2.97054e-01 396 2014 8 2.46572e+00 5.76248e-01 504 2014 9 2.60929e+00 7.27192e-01 136 2014 10 5.09949e+00 2.23804e+00 1091 2014 11 4.41882e+00 9.89672e-01 924 2014 12 4.02161e+00 2.39081e+00 610 2015 1 4.66725e+00 1.52485e+00 539 2015 2 5.01532e+00 1.99465e+00 605 2015 3 2.32945e+00 6.66892e-01 495 2015 4 1.69909e+00 9.35029e-01 378 2015 5 1.67961e+00 2.68567e-01 513 2015 6 1.52882e+00 3.11971e-01 433 2015 7 2.69872e+00 3.56070e-01 118 2015 8 5.35813e+00 1.78368e+00 387 2015 9 3.03297e+00 1.02627e+00 283 2015 10 3.19203e+00 1.14507e+00 628 2015 11 4.51293e+00 1.77890e+00 563 2015 12 3.95192e+00 9.27462e-01 257 2016 1 4.30268e+00 2.05328e+00 576 2016 2 4.39902e+00 1.93172e+00 892 2016 3 3.04817e+00 1.03157e+00 448 2016 4 2.08889e+00 5.42050e-01 489 2016 5 1.89539e+00 7.93308e-01 509 2016 6 2.23261e+00 5.56708e-01 320 2016 7 1.68964e+00 3.31308e-01 202 2016 8 2.14510e+00 6.63762e-01 391 2016 9 3.05966e+00 1.63662e+00 725 2016 10 3.12701e+00 8.94414e-01 516 2016 11 2.94109e+00 6.81738e-01 668 2016 12 2.14738e+00 6.33760e-01 826 2017 1 2.77776e+00 1.50227e+00 823 2017 2 2.36926e+00 5.68591e-01 1166 2017 3 1.91792e+00 5.34760e-01 837 2017 4 1.89411e+00 3.79352e-01 549 2017 5 2.72235e+00 7.03073e-01 375 2017 6 2.26990e+00 1.95650e-01 177 2017 7 2.11495e+00 1.82865e-01 192 2017 8 3.43385e+00 1.35790e+00 319 2017 9 1.30267e+01 5.45015e+01 614 2017 10 5.66864e+00 2.74817e+00 515 2017 11 3.09301e+00 8.02604e-01 1038 2017 12 2.66102e+00 5.70357e-01 887 2018 1 3.88023e+00 1.46107e+00 668 2018 2 3.10709e+00 7.87135e-01 592 2018 3 3.99380e+00 1.16577e+00 992 2018 4 2.13973e+00 4.16190e-01 737 2018 5 1.66920e+00 3.53074e-01 355 2018 6 1.94800e+00 2.33146e-01 416 2018 7 2.16573e+00 5.97580e-01 330 2018 8 4.07843e+00 1.62219e+00 329 2018 9 5.43994e+00 2.21865e+00 465 2018 10 2.51058e+00 5.53731e-01 841 2018 11 3.60431e+00 1.06984e+00 482 2018 12 4.73999e+00 3.46726e+00 538 2019 1 4.66000e+00 1.49927e+00 771 2019 2 4.37546e+00 2.39197e+00 604 2019 3 2.38739e+00 1.00867e+00 858 2019 4 2.70549e+00 5.86868e-01 420 2019 5 1.70742e+00 2.49769e-01 604 2019 6 1.67760e+00 2.72503e-01 437 2019 7 2.77891e+00 8.62787e-01 512 2019 8 7.50646e+00 2.62058e+00 147 2019 9 3.06835e+00 1.74078e+00 384 2019 10 2.23818e+00 7.54281e-01 693 2019 11 2.53031e+00 5.99769e-01 542 2019 12 3.86816e+00 1.03029e+00 241 2020 1 3.87245e+00 1.42316e+00 636 2020 2 3.18125e+00 1.45462e+00 576 2020 3 2.00856e+00 1.18080e+00 514 2020 4 2.36687e+00 1.16122e+00 256 2020 5 1.68225e+00 3.31891e-01 742 2020 6 1.80103e+00 6.21897e-01 384 2020 7 2.16571e+00 3.44342e-01 192 2020 8 2.08112e+00 1.99809e-01 256 2020 9 3.97404e+00 3.96114e-01 161 2020 10 2.75323e+00 8.51263e-01 484 2020 11 5.04329e+00 2.22635e+00 631 2020 12 2.32418e+00 4.92100e-01 626 2021 1 3.09009e+00 1.58398e+00 592 2021 2 3.82067e+00 7.48078e-01 595 2021 3 2.71115e+00 7.03245e-01 596 2021 4 2.18987e+00 4.18155e-01 677 2021 5 2.16051e+00 3.06431e-01 702 2021 6 2.08532e+00 3.24961e-01 201 2021 7 2.95851e+00 8.30033e-01 227 2021 8 2.31832e+00 7.50703e-01 373 2021 9 2.73089e+00 6.59452e-01 395 2021 10 2.75978e+00 8.93883e-01 752 2021 11 2.97026e+00 9.23178e-01 857 2021 12 3.56016e+00 9.96534e-01 931 2022 1 4.05647e+00 1.36309e+00 745 2022 2 2.82120e+00 1.09887e+00 1333 2022 3 2.20719e+00 9.27967e-01 831 2022 4 nan nan 0 2022 5 1.44034e+00 2.00445e-01 641 2022 6 1.28077e+00 1.82174e-01 235 2022 7 2.20785e+00 3.28829e-01 303 2022 8 1.83484e+00 3.04210e-01 227 2022 9 2.98005e+00 1.79317e+00 480 2022 10 7.80515e+00 9.95185e+00 899 2022 11 4.49889e+00 9.23555e-01 512 2022 12 3.57498e+00 7.54626e-01 719 2023 1 2.93147e+00 6.79576e-01 832 2023 2 2.75028e+00 7.38679e-01 1035 2023 3 2.74570e+00 9.73280e-01 859 2023 4 1.77493e+00 3.73951e-01 342 2023 5 1.74672e+00 3.94067e-01 512 2023 6 1.68460e+00 2.13605e-01 295 2023 7 1.85677e+00 2.79487e-01 256 2023 8 1.99792e+00 2.47665e-01 384 2023 9 2.12901e+00 6.09504e-01 643 2023 10 1.64053e+00 5.73425e-01 552 2023 11 2.36086e+00 8.61282e-01 754 2023 12 4.12215e+00 1.37620e+00 244 2024 1 6.58989e+00 1.42022e+00 218 2024 2 3.50884e+00 1.09917e+00 673 2024 3 2.53299e+00 7.24208e-01 395 2024 4 nan nan 0