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 1.61126e+00 9.79859e-01 347 2002 8 2.38415e+00 2.52358e+00 558 2002 9 6.85876e-01 1.06542e+00 576 2002 10 1.11943e+00 7.42311e-01 660 2002 11 3.77887e-01 7.49716e-01 320 2002 12 1.03504e+00 1.30728e+00 681 2003 1 1.74869e+00 9.38288e-01 685 2003 2 1.18552e+00 7.92013e-01 575 2003 3 1.21312e+00 1.02373e+00 640 2003 4 1.26549e-01 1.77791e-01 414 2003 5 2.53088e-01 4.83700e-01 239 2003 6 1.27787e+00 1.97942e+00 318 2003 7 1.48104e+00 2.35524e+00 596 2003 8 3.41450e+00 2.90832e+00 621 2003 9 2.47859e+00 2.48609e+00 724 2003 10 1.75447e-01 3.23127e-01 441 2003 11 4.58709e-01 1.02570e+00 702 2003 12 3.36778e-01 5.47201e-01 651 2004 1 2.88502e+00 1.05008e+00 893 2004 2 3.12598e+00 1.14703e+00 784 2004 3 1.65722e+00 1.78215e+00 512 2004 4 9.50052e-01 6.07333e+00 407 2004 5 2.10858e+00 2.34484e+00 254 2004 6 3.33928e+00 3.17414e+00 558 2004 7 4.16466e+00 2.82221e+00 132 2004 8 2.64375e+00 2.19387e+00 633 2004 9 2.90826e+00 2.54838e+00 671 2004 10 9.47986e-01 1.21462e+00 630 2004 11 6.18775e-01 5.53117e-01 774 2004 12 1.16610e+00 1.10520e+00 449 2005 1 5.12551e-01 1.04879e+00 640 2005 2 8.45982e-01 6.92436e-01 576 2005 3 1.12336e+00 1.10265e+00 860 2005 4 2.99633e-01 8.04556e-01 704 2005 5 7.36157e-01 1.22640e+00 341 2005 6 3.16347e+00 4.52087e+00 457 2005 7 8.39006e-01 5.57371e-01 380 2005 8 3.89048e+00 2.45169e+00 718 2005 9 4.54230e-01 6.93351e-01 864 2005 10 7.12237e-01 7.99529e-01 462 2005 11 2.13447e-01 2.83960e-01 643 2005 12 8.60998e-01 5.41440e-01 576 2006 1 2.15104e+00 1.88027e+00 826 2006 2 1.10351e+00 9.66366e-01 647 2006 3 1.09887e+00 9.55490e-01 802 2006 4 1.40969e+00 1.46077e+00 552 2006 5 1.67898e+00 2.37502e+00 192 2006 6 1.95389e+00 1.98986e+00 244 2006 7 1.18992e+00 1.79532e+00 237 2006 8 2.36608e+00 2.80955e+00 845 2006 9 1.28624e+00 1.58874e+00 512 2006 10 9.61915e-01 9.76549e-01 762 2006 11 8.92938e-01 9.43920e-01 606 2006 12 7.98649e-01 6.84549e-01 532 2007 1 3.02687e+00 2.90939e+00 512 2007 2 4.71170e+00 2.98722e+00 761 2007 3 1.58343e+00 1.60105e+00 704 2007 4 7.99276e-03 2.01375e-02 481 2007 5 4.83530e-01 6.89193e-01 511 2007 6 5.55036e-01 6.84103e-01 194 2007 7 6.17140e+00 4.07813e+00 517 2007 8 1.92565e+00 1.96777e+00 448 2007 9 2.01613e+00 1.97245e+00 960 2007 10 7.11207e-02 9.37200e-02 552 2007 11 3.61201e-01 2.99316e-01 640 2007 12 1.52262e+00 7.28698e-01 336 2008 1 1.69231e+00 1.12165e+00 551 2008 2 2.16655e+00 1.33942e+00 544 2008 3 1.71158e+00 1.51045e+00 754 2008 4 6.95301e-01 1.23668e+00 568 2008 5 8.98075e-01 1.55055e+00 262 2008 6 3.19655e+00 2.08879e+00 438 2008 7 2.58704e+00 2.99513e+00 504 2008 8 2.29619e+00 2.51860e+00 958 2008 9 1.84309e+00 2.21640e+00 842 2008 10 2.85274e-01 3.34550e-01 832 2008 11 5.35484e-01 6.16173e-01 580 2008 12 1.03092e+00 4.51073e-01 384 2009 1 5.27002e+00 2.08083e+00 1092 2009 2 6.71089e+00 2.77149e+00 634 2009 3 3.95109e+00 2.63583e+00 640 2009 4 7.17236e-01 9.77017e-01 473 2009 5 5.33990e-01 5.69185e-01 296 2009 6 4.41994e+00 2.78072e+00 278 2009 7 2.54039e+00 1.88207e+00 480 2009 8 3.01983e+00 2.11819e+00 473 2009 9 1.10918e+00 2.15280e+00 707 2009 10 2.05452e+00 1.97140e+00 517 2009 11 2.16225e-01 1.87416e-01 488 2009 12 7.54953e-01 7.82840e-01 499 2010 1 2.37231e+00 1.30163e+00 768 2010 2 1.36778e+00 1.05424e+00 576 2010 3 5.41779e-02 1.15870e-01 640 2010 4 8.59730e-03 1.90875e-02 592 2010 5 2.20931e+00 3.05247e+00 742 2010 6 4.05177e+00 3.67459e+00 525 2010 7 3.29945e+00 3.29138e+00 591 2010 8 2.20770e+00 2.49169e+00 844 2010 9 1.69662e+00 1.86315e+00 844 2010 10 2.48444e-01 4.58521e-01 722 2010 11 1.34200e-01 2.43505e-01 576 2010 12 4.96696e-01 3.19434e-01 306 2011 1 2.07331e+00 3.80668e+00 636 2011 2 3.05340e+00 6.52535e-01 520 2011 3 1.56813e+00 2.22906e+00 718 2011 4 7.40590e-01 1.09181e+00 319 2011 5 6.20887e-01 1.30235e+00 226 2011 6 2.86481e+00 3.41178e+00 291 2011 7 3.20876e+00 3.00412e+00 601 2011 8 6.06470e+00 4.85777e+00 783 2011 9 2.03544e+00 1.85970e+00 407 2011 10 4.70864e-01 6.62690e-01 446 2011 11 4.18753e-01 6.79707e-01 768 2011 12 7.11078e-01 7.69248e-01 512 2012 1 1.95961e+00 1.46243e+00 756 2012 2 3.15260e+00 2.33057e+00 684 2012 3 4.77721e-01 8.63060e-01 832 2012 4 2.21325e+00 1.95544e+00 545 2012 5 1.59733e+00 2.73999e+00 289 2012 6 1.09538e+00 1.34887e+00 512 2012 7 1.89372e+00 1.43082e+00 659 2012 8 1.01690e+00 1.14673e+00 687 2012 9 2.05160e+00 3.55434e+00 832 2012 10 1.00476e+00 1.17634e+00 482 2012 11 2.84655e-01 3.03387e-01 527 2012 12 8.36356e-01 1.24994e+00 364 2013 1 9.76815e-01 3.55981e-01 563 2013 2 4.06678e-01 5.84130e-01 558 2013 3 1.52110e+00 3.85201e+00 285 2013 4 1.95304e+00 2.06895e+00 906 2013 5 2.14955e+00 2.15922e+00 316 2013 6 7.68867e-01 8.98393e-01 384 2013 7 2.38848e+00 1.78919e+00 440 2013 8 1.66648e+00 2.37784e+00 844 2013 9 9.42492e-01 9.40563e-01 1024 2013 10 7.14178e-01 8.40903e-01 526 2013 11 7.36926e-02 1.49254e-01 923 2013 12 1.59902e+00 8.90836e-01 533 2014 1 1.33464e+00 1.37907e+00 519 2014 2 3.06088e+00 1.64269e+00 644 2014 3 3.15630e+00 2.03798e+00 512 2014 4 7.59722e-01 5.30701e-01 396 2014 5 2.37590e-01 2.34954e-01 320 2014 6 3.13799e+00 2.82043e+00 527 2014 7 3.01817e+00 2.73436e+00 344 2014 8 1.60616e+00 1.12465e+00 960 2014 9 1.09321e+00 1.53108e+00 909 2014 10 1.24162e+00 2.06833e+00 530 2014 11 6.10420e-01 5.96580e-01 320 2014 12 1.46893e+00 1.21041e+00 241 2015 1 1.80296e+00 1.11709e+00 540 2015 2 1.54185e+00 1.65950e+00 522 2015 3 2.64353e+00 1.68813e+00 744 2015 4 6.17021e+00 2.45838e+00 578 2015 5 2.21477e+00 2.56852e+00 510 2015 6 5.18382e+00 1.74341e+00 451 2015 7 2.43787e+00 3.31001e+00 461 2015 8 3.74742e+00 2.81925e+00 704 2015 9 3.00051e+00 3.96609e+00 793 2015 10 2.43024e-01 4.14602e-01 766 2015 11 1.16639e-01 4.67223e-01 779 2015 12 9.53894e-02 1.10510e-01 323 2016 1 5.39056e-01 5.68444e-01 450 2016 2 8.38780e-01 7.04005e-01 576 2016 3 1.61967e+00 1.54754e+00 666 2016 4 8.78723e-01 1.02957e+00 823 2016 5 2.13309e+00 1.71643e+00 270 2016 6 3.48458e+00 2.63455e+00 577 2016 7 3.52399e+00 4.13527e+00 589 2016 8 2.01493e+00 1.81448e+00 961 2016 9 6.65539e-01 1.01671e+00 619 2016 10 2.50360e-01 4.05496e-01 599 2016 11 1.98726e-01 3.93583e-01 768 2016 12 3.95640e-02 4.93196e-02 531 2017 1 1.93441e+00 1.31606e+00 576 2017 2 1.72332e+00 1.30502e+00 618 2017 3 1.46890e+00 1.17368e+00 960 2017 4 1.59892e+00 1.38710e+00 512 2017 5 5.78269e-01 4.85887e-01 327 2017 6 4.64445e+00 1.11719e+01 441 2017 7 5.24030e+00 4.37157e+00 688 2017 8 1.40403e+00 1.26737e+00 601 2017 9 6.74917e-01 1.09607e+00 702 2017 10 8.90259e-02 1.57297e-01 647 2017 11 2.95013e-01 7.46894e-01 640 2017 12 2.10007e+00 1.18059e+00 388 2018 1 1.75875e+00 9.36925e-01 640 2018 2 2.46370e+00 1.87481e+00 441 2018 3 4.07196e-01 4.11960e-01 444 2018 4 2.37052e+00 3.54234e+00 640 2018 5 6.70837e-01 1.28865e+00 375 2018 6 1.97427e+00 2.15838e+00 527 2018 7 1.40813e+00 1.27468e+00 775 2018 8 1.98254e+00 1.78922e+00 661 2018 9 2.73708e+00 2.41986e+00 404 2018 10 6.14041e-01 9.58271e-01 635 2018 11 4.62589e-01 2.37795e-01 523 2018 12 9.01908e-01 6.44141e-01 975 2019 1 2.19126e+00 1.90538e+00 779 2019 2 2.71207e+00 2.50507e+00 506 2019 3 6.04292e+00 1.60479e+00 949 2019 4 1.54729e+00 1.90285e+00 507 2019 5 1.87404e+00 2.39720e+00 174 2019 6 1.08273e+00 1.13116e+00 314 2019 7 1.80641e+00 2.04740e+00 801 2019 8 1.94335e+00 2.46503e+00 546 2019 9 6.61368e-01 1.07238e+00 871 2019 10 1.82795e-02 1.75023e-02 376 2019 11 2.04710e-01 2.93215e-01 713 2019 12 1.45931e+00 9.73257e-01 509 2020 1 1.58775e+00 1.09329e+00 798 2020 2 1.62333e+00 1.32509e+00 564 2020 3 1.59964e+00 1.50033e+00 704 2020 4 8.12082e-01 1.30346e+00 304 2020 5 2.07141e+00 3.42480e+00 577 2020 6 1.95165e+00 1.54813e+00 318 2020 7 1.72642e+00 1.17209e+00 561 2020 8 9.35616e-01 5.23401e-01 320 2020 9 1.00481e+00 1.90393e+00 395 2020 10 1.77432e+00 2.01768e+00 638 2020 11 5.17297e-01 1.16154e+00 524 2020 12 1.07872e-01 1.42131e-01 384 2021 1 5.53250e-01 7.23331e-01 448 2021 2 1.45439e+00 8.25101e-01 461 2021 3 7.10368e-01 7.49075e-01 1147 2021 4 2.69773e+00 1.81794e+00 769 2021 5 5.71869e-01 1.27241e+00 534 2021 6 2.84296e+00 2.35909e+00 512 2021 7 3.94991e-02 5.43286e-02 278 2021 8 2.01646e+00 3.33798e+00 406 2021 9 1.43586e+00 1.99465e+00 785 2021 10 3.68646e-01 5.86251e-01 598 2021 11 1.39626e-01 5.56435e-01 842 2021 12 3.90580e-01 3.67926e-01 320 2022 1 2.25567e+00 2.93543e+00 569 2022 2 2.76048e+00 1.37713e+00 803 2022 3 3.10266e+00 2.34380e+00 640 2022 4 3.17554e-01 4.28784e-01 249 2022 5 9.00036e-01 1.15280e+00 256 2022 6 2.34493e+00 2.50884e+00 559 2022 7 2.31403e+00 1.51112e+00 961 2022 8 2.95337e+00 2.46125e+00 801 2022 9 1.24138e+00 1.67075e+00 756 2022 10 1.69383e-01 2.75496e-01 774 2022 11 5.16853e-01 1.00459e+00 979 2022 12 5.91942e-01 7.61753e-01 578 2023 1 7.06622e-01 1.17495e+00 371 2023 2 2.68824e+00 2.61312e+00 357 2023 3 3.14617e+00 2.06128e+00 557 2023 4 2.35921e+00 4.12110e+00 497 2023 5 1.44966e+00 6.73761e+00 463 2023 6 1.66821e+00 1.40385e+00 448 2023 7 1.11744e+00 1.63107e+00 620 2023 8 4.42476e-01 5.02696e-01 771 2023 9 9.33819e-01 9.96502e-01 435 2023 10 1.05954e+00 1.71309e+00 796 2023 11 2.25235e-01 6.13318e-01 661 2023 12 1.78772e-01 3.81289e-01 384 2024 1 6.05405e-01 8.58479e-01 445 2024 2 8.50831e-01 1.32729e+00 848 2024 3 4.29915e-01 4.19934e-01 531 2024 4 nan nan 0