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 4.93918e+00 1.03785e+00 343 2002 8 5.75167e+00 1.10953e+00 641 2002 9 3.17947e+00 1.18288e+00 588 2002 10 4.38224e+00 1.34821e+00 725 2002 11 4.20353e+00 1.42315e+00 410 2002 12 5.03529e+00 5.44764e-01 572 2003 1 5.03850e+00 6.11868e-01 625 2003 2 4.72803e+00 6.67727e-01 576 2003 3 4.32492e+00 8.54666e-01 640 2003 4 3.08162e+00 1.76963e+00 718 2003 5 3.93919e+00 2.32130e+00 356 2003 6 4.28216e+00 3.19355e+00 289 2003 7 4.59679e+00 1.94615e+00 707 2003 8 3.92093e+00 1.82279e+00 584 2003 9 5.13776e+00 1.53268e+00 758 2003 10 3.29732e+00 1.71649e+00 559 2003 11 3.05826e+00 1.44616e+00 655 2003 12 3.86767e+00 1.46582e+00 660 2004 1 5.80889e+00 6.33598e-01 861 2004 2 6.06214e+00 2.75393e-01 773 2004 3 3.39343e+00 1.70861e+00 606 2004 4 2.30731e+00 1.02450e+00 511 2004 5 5.11807e+00 1.33728e+00 316 2004 6 4.14228e+00 1.52891e+00 239 2004 7 6.06217e+00 1.01492e+00 128 2004 8 5.48627e+00 1.65294e+00 607 2004 9 4.40720e+00 1.75481e+00 512 2004 10 4.35719e+00 1.51338e+00 645 2004 11 4.73624e+00 7.05610e-01 832 2004 12 4.72576e+00 9.09910e-01 469 2005 1 3.85863e+00 1.15424e+00 704 2005 2 4.46002e+00 9.85906e-01 512 2005 3 3.90880e+00 1.25700e+00 637 2005 4 2.68270e+00 1.28938e+00 728 2005 5 3.19841e+00 1.50728e+00 381 2005 6 3.79148e+00 1.87376e+00 384 2005 7 3.16147e+00 1.15885e+00 375 2005 8 5.22091e+00 9.40428e-01 506 2005 9 3.19243e+00 1.50670e+00 807 2005 10 3.11152e+00 1.35001e+00 367 2005 11 3.42608e+00 1.02396e+00 520 2005 12 5.08940e+00 9.38251e-01 606 2006 1 5.12057e+00 7.49480e-01 704 2006 2 4.96653e+00 5.35753e-01 809 2006 3 4.50480e+00 1.21775e+00 799 2006 4 2.56691e+00 1.70506e+00 483 2006 5 3.50711e+00 2.69598e+00 122 2006 6 4.96453e+00 5.66581e-01 256 2006 7 5.29989e+00 1.31968e+00 396 2006 8 4.87953e+00 1.50038e+00 712 2006 9 3.94568e+00 1.48353e+00 810 2006 10 4.26807e+00 1.18999e+00 593 2006 11 4.09644e+00 1.56045e+00 415 2006 12 4.57285e+00 8.53280e-01 489 2007 1 5.26113e+00 9.18844e-01 451 2007 2 6.14309e+00 8.58868e-01 733 2007 3 3.81000e+00 1.69857e+00 611 2007 4 1.73314e+00 4.79159e-01 374 2007 5 2.25376e+00 9.77248e-01 499 2007 6 3.57187e+00 2.96108e+00 259 2007 7 6.37369e+00 1.58214e+00 448 2007 8 4.42049e+00 1.13583e+00 448 2007 9 4.25051e+00 1.17902e+00 846 2007 10 3.29185e+00 1.52404e+00 543 2007 11 4.33281e+00 8.82302e-01 707 2007 12 5.00904e+00 3.67648e-01 256 2008 1 5.50477e+00 8.40384e-01 595 2008 2 5.28073e+00 4.37577e-01 448 2008 3 4.13806e+00 1.20302e+00 704 2008 4 3.14744e+00 1.55835e+00 569 2008 5 3.50238e+00 1.71850e+00 256 2008 6 5.13156e+00 1.40439e+00 555 2008 7 5.41517e+00 1.31961e+00 399 2008 8 3.79662e+00 1.68727e+00 514 2008 9 4.00790e+00 1.73060e+00 907 2008 10 3.33540e+00 1.09651e+00 775 2008 11 4.03085e+00 7.68673e-01 704 2008 12 4.88025e+00 1.00166e+00 483 2009 1 6.87192e+00 9.17387e-01 1111 2009 2 7.17635e+00 7.93381e-01 696 2009 3 5.17494e+00 1.85858e+00 817 2009 4 2.66159e+00 1.32123e+00 528 2009 5 3.08113e+00 1.04270e+00 307 2009 6 6.10888e+00 2.00106e+00 317 2009 7 4.10395e+00 1.56300e+00 351 2009 8 4.68690e+00 1.39195e+00 372 2009 9 3.55420e+00 2.20371e+00 530 2009 10 5.18572e+00 8.06050e-01 384 2009 11 3.63791e+00 7.58877e-01 410 2009 12 4.37450e+00 9.76706e-01 509 2010 1 5.10701e+00 6.86455e-01 864 2010 2 5.33211e+00 7.22952e-01 559 2010 3 2.49504e+00 6.70707e-01 576 2010 4 2.54406e+00 1.15923e+00 474 2010 5 4.30813e+00 1.71430e+00 539 2010 6 5.96348e+00 1.32673e+00 421 2010 7 6.06856e+00 1.54211e+00 645 2010 8 4.78836e+00 1.54884e+00 626 2010 9 4.50305e+00 1.56415e+00 747 2010 10 2.96229e+00 9.21315e-01 613 2010 11 3.38747e+00 6.92453e-01 551 2010 12 4.50064e+00 7.12134e-01 319 2011 1 4.75053e+00 3.41858e-01 540 2011 2 5.53949e+00 4.41451e-01 521 2011 3 3.52335e+00 1.72546e+00 702 2011 4 3.26976e+00 1.55249e+00 256 2011 5 3.46092e+00 2.32126e+00 256 2011 6 4.38743e+00 2.68796e+00 277 2011 7 4.83885e+00 2.00667e+00 753 2011 8 4.22019e+00 2.28495e+00 629 2011 9 4.77592e+00 1.20703e+00 428 2011 10 3.61088e+00 9.63251e-01 387 2011 11 3.12549e+00 1.46625e+00 699 2011 12 4.01295e+00 9.70958e-01 468 2012 1 5.30051e+00 1.49684e+00 691 2012 2 5.68371e+00 5.75298e-01 623 2012 3 3.24812e+00 1.37479e+00 830 2012 4 5.18584e+00 2.39926e+00 680 2012 5 3.46092e+00 1.66458e+00 404 2012 6 3.13593e+00 1.95525e+00 320 2012 7 5.13855e+00 1.88510e+00 750 2012 8 3.57265e+00 1.30018e+00 507 2012 9 3.93230e+00 1.89426e+00 870 2012 10 4.04056e+00 1.73681e+00 478 2012 11 4.07976e+00 5.33436e-01 547 2012 12 3.50662e+00 9.77020e-01 320 2013 1 4.42580e+00 6.44195e-01 704 2013 2 4.33679e+00 1.33777e+00 760 2013 3 3.53101e+00 1.36024e+00 279 2013 4 4.33903e+00 1.43669e+00 754 2013 5 4.51070e+00 1.31334e+00 426 2013 6 4.10488e+00 1.77205e+00 496 2013 7 4.94948e+00 1.48189e+00 442 2013 8 4.37949e+00 1.49433e+00 723 2013 9 4.06747e+00 1.45827e+00 1064 2013 10 3.37019e+00 1.13825e+00 573 2013 11 3.01998e+00 6.22689e-01 896 2013 12 5.44980e+00 6.76879e-01 413 2014 1 5.23532e+00 9.51687e-01 549 2014 2 5.95126e+00 5.99891e-01 656 2014 3 5.91531e+00 8.03604e-01 572 2014 4 4.04757e+00 1.28313e+00 460 2014 5 2.24899e+00 1.69295e+00 343 2014 6 4.39850e+00 2.31934e+00 544 2014 7 4.98402e+00 1.68684e+00 449 2014 8 3.94794e+00 1.77323e+00 831 2014 9 4.01711e+00 1.39065e+00 766 2014 10 4.22585e+00 1.29190e+00 592 2014 11 4.41795e+00 6.75796e-01 323 2014 12 2.91228e+00 1.04083e+00 237 2015 1 4.75731e+00 1.06571e+00 559 2015 2 3.70249e+00 1.57395e+00 459 2015 3 5.73835e+00 1.07980e+00 765 2015 4 6.83290e+00 1.23619e+00 510 2015 5 4.03601e+00 1.69299e+00 437 2015 6 6.01266e+00 7.57378e-01 430 2015 7 3.87387e+00 2.04859e+00 420 2015 8 5.47337e+00 1.25772e+00 875 2015 9 4.41372e+00 1.58942e+00 930 2015 10 3.12006e+00 1.03541e+00 689 2015 11 3.19765e+00 7.68781e-01 815 2015 12 4.33006e+00 9.87903e-01 525 2016 1 4.39044e+00 2.06225e-01 481 2016 2 4.34601e+00 5.33110e-01 537 2016 3 4.24033e+00 1.35314e+00 506 2016 4 3.80218e+00 1.28990e+00 702 2016 5 4.45613e+00 7.37130e-01 237 2016 6 4.80294e+00 1.29209e+00 666 2016 7 5.37430e+00 1.72624e+00 597 2016 8 4.18109e+00 7.78216e-01 765 2016 9 2.77039e+00 1.42848e+00 528 2016 10 3.78303e+00 7.50587e-01 576 2016 11 3.50946e+00 9.90209e-01 733 2016 12 3.20226e+00 9.79756e-01 448 2017 1 5.38623e+00 1.19807e+00 640 2017 2 5.27688e+00 7.07791e-01 477 2017 3 4.62929e+00 9.12358e-01 954 2017 4 4.71624e+00 9.08935e-01 512 2017 5 2.62645e+00 1.71929e+00 225 2017 6 3.66673e+00 1.96198e+00 583 2017 7 5.22968e+00 2.00840e+00 640 2017 8 4.20071e+00 1.09389e+00 660 2017 9 3.30464e+00 1.42349e+00 576 2017 10 2.33177e+00 9.03883e-01 661 2017 11 3.61393e+00 1.04700e+00 608 2017 12 5.52670e+00 7.35018e-01 454 2018 1 4.61460e+00 1.10500e+00 755 2018 2 5.06211e+00 9.74762e-01 512 2018 3 3.68718e+00 4.95320e-01 262 2018 4 3.76981e+00 8.85494e-01 576 2018 5 3.75380e+00 1.01415e+00 136 2018 6 3.78188e+00 1.68959e+00 410 2018 7 4.87309e+00 1.04045e+00 670 2018 8 3.87197e+00 1.69065e+00 488 2018 9 4.48694e+00 1.64824e+00 463 2018 10 3.54231e+00 7.04974e-01 640 2018 11 3.79899e+00 5.88894e-01 449 2018 12 4.52694e+00 5.52311e-01 773 2019 1 5.05900e+00 1.30370e+00 583 2019 2 5.38832e+00 1.18167e+00 530 2019 3 6.73362e+00 7.31907e-01 762 2019 4 4.18734e+00 2.82530e+00 503 2019 5 3.26776e+00 1.98568e+00 256 2019 6 3.53580e+00 2.24037e+00 538 2019 7 3.97557e+00 1.15765e+00 742 2019 8 3.77313e+00 1.59048e+00 464 2019 9 3.18934e+00 1.23630e+00 639 2019 10 2.63373e+00 1.43123e-01 245 2019 11 3.27398e+00 1.08741e+00 659 2019 12 4.98285e+00 4.20898e-01 519 2020 1 4.75542e+00 6.81673e-01 704 2020 2 4.66845e+00 1.52114e+00 683 2020 3 3.86217e+00 1.32931e+00 786 2020 4 3.37726e+00 1.02866e+00 303 2020 5 3.51845e+00 1.98049e+00 535 2020 6 4.70593e+00 5.41862e-01 487 2020 7 4.22337e+00 1.03565e+00 566 2020 8 4.04603e+00 6.36149e-01 320 2020 9 3.12006e+00 2.10471e+00 558 2020 10 4.20103e+00 1.46262e+00 576 2020 11 2.63996e+00 1.29592e+00 522 2020 12 2.80239e+00 1.33032e+00 385 2021 1 3.05548e+00 8.87007e-01 384 2021 2 4.49926e+00 6.85140e-01 422 2021 3 3.94673e+00 9.98924e-01 1026 2021 4 4.53857e+00 1.43009e+00 621 2021 5 3.26345e+00 1.31342e+00 485 2021 6 5.56807e+00 2.99424e+00 534 2021 7 2.05623e+00 9.36835e-01 252 2021 8 3.13102e+00 1.37725e+00 363 2021 9 3.03112e+00 1.44519e+00 768 2021 10 3.26046e+00 1.25731e+00 706 2021 11 2.27569e+00 1.16594e+00 884 2021 12 3.11273e+00 1.22415e+00 320 2022 1 5.07617e+00 1.32165e+00 492 2022 2 6.42644e+00 5.60664e-01 733 2022 3 5.08011e+00 1.69629e+00 578 2022 4 2.77858e+00 1.06582e+00 227 2022 5 4.36210e+00 1.56527e+00 220 2022 6 5.26171e+00 1.44718e+00 578 2022 7 5.59633e+00 1.25365e+00 976 2022 8 4.83611e+00 1.55815e+00 820 2022 9 3.63743e+00 1.45039e+00 799 2022 10 2.56184e+00 1.18298e+00 704 2022 11 4.05932e+00 6.40734e-01 913 2022 12 4.12723e+00 1.14267e+00 588 2023 1 4.07439e+00 1.40217e+00 334 2023 2 4.97880e+00 1.63242e+00 345 2023 3 5.99885e+00 1.00156e+00 467 2023 4 4.15906e+00 1.77431e+00 573 2023 5 3.01355e+00 1.19505e+00 390 2023 6 3.92057e+00 1.35455e+00 380 2023 7 2.99693e+00 1.37560e+00 538 2023 8 3.28717e+00 1.30606e+00 632 2023 9 3.92824e+00 1.19510e+00 592 2023 10 3.50606e+00 1.15623e+00 599 2023 11 2.15748e+00 1.59280e+00 756 2023 12 3.29806e+00 1.16130e+00 313 2024 1 3.07550e+00 9.62294e-01 532 2024 2 3.92163e+00 1.47044e+00 941 2024 3 3.64706e+00 9.98653e-01 592 2024 4 nan nan 0