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 3.53393e+00 1.42173e+00 442 2002 8 5.05574e+00 1.04970e+00 317 2002 9 2.96369e+00 1.08040e+00 599 2002 10 2.42734e+00 7.89525e-01 751 2002 11 2.61873e+00 8.42589e-01 506 2002 12 2.53233e+00 5.43906e-01 512 2003 1 3.23896e+00 8.20927e-01 695 2003 2 2.55925e+00 7.77138e-01 585 2003 3 4.14846e+00 1.26345e+00 646 2003 4 4.10095e+00 1.02518e+00 315 2003 5 4.15177e+00 7.94278e-01 447 2003 6 3.15894e+00 2.51407e+00 342 2003 7 4.14226e+00 1.84034e+00 695 2003 8 5.11645e+00 1.46722e+00 730 2003 9 4.52728e+00 1.51974e+00 679 2003 10 2.92074e+00 2.03205e+00 384 2003 11 2.32900e+00 9.85482e-01 609 2003 12 2.40476e+00 1.27269e+00 702 2004 1 2.63549e+00 1.24457e+00 703 2004 2 2.96365e+00 1.30023e+00 939 2004 3 2.17718e+00 7.04687e-01 616 2004 4 3.04516e+00 1.11097e+00 334 2004 5 3.70854e+00 1.74616e+00 411 2004 6 4.26603e+00 1.11838e+00 366 2004 7 5.39991e+00 9.82100e-01 220 2004 8 4.78745e+00 8.63763e-01 474 2004 9 4.25288e+00 1.74543e+00 960 2004 10 2.24679e+00 9.67631e-01 566 2004 11 2.05595e+00 6.77559e-01 704 2004 12 3.24612e+00 7.47024e-01 435 2005 1 1.66553e+00 6.63349e-01 273 2005 2 2.77915e+00 7.47843e-01 430 2005 3 3.15737e+00 1.11012e+00 911 2005 4 3.44608e+00 1.44280e+00 851 2005 5 3.63782e+00 9.70711e-01 384 2005 6 3.21336e+00 1.79479e+00 447 2005 7 2.70282e+00 1.43997e+00 440 2005 8 4.55771e+00 7.39561e-01 576 2005 9 3.81729e+00 1.64283e+00 1032 2005 10 3.25289e+00 1.40563e+00 357 2005 11 2.73354e+00 1.12743e+00 525 2005 12 2.61760e+00 6.38326e-01 600 2006 1 2.40469e+00 7.36178e-01 668 2006 2 2.67162e+00 8.54880e-01 707 2006 3 3.37752e+00 8.25779e-01 911 2006 4 4.10413e+00 1.78732e+00 653 2006 5 3.92377e+00 7.98917e-01 441 2006 6 3.51002e+00 1.60937e+00 357 2006 7 5.07718e+00 5.59097e-01 468 2006 8 4.40021e+00 1.86296e+00 804 2006 9 3.47931e+00 1.88540e+00 667 2006 10 3.76575e+00 1.27961e+00 873 2006 11 2.71231e+00 4.83048e-01 448 2006 12 2.49876e+00 6.04940e-01 576 2007 1 2.12161e+00 8.01998e-01 573 2007 2 3.20312e+00 1.22551e+00 891 2007 3 2.74442e+00 7.48065e-01 823 2007 4 3.53800e+00 4.24015e-01 345 2007 5 3.85644e+00 1.00730e+00 631 2007 6 3.55012e+00 1.43650e+00 381 2007 7 4.03236e+00 1.94774e+00 490 2007 8 2.72584e+00 1.55049e+00 576 2007 9 4.37366e+00 1.62963e+00 800 2007 10 2.52107e+00 1.12528e+00 567 2007 11 2.18591e+00 4.90276e-01 416 2007 12 3.12993e+00 7.74499e-01 320 2008 1 1.90930e+00 8.46770e-01 381 2008 2 3.45185e+00 1.01031e+00 708 2008 3 2.76489e+00 9.11226e-01 815 2008 4 3.42116e+00 1.57264e+00 590 2008 5 3.79681e+00 1.40562e+00 453 2008 6 4.29898e+00 2.09559e+00 528 2008 7 5.13112e+00 8.08474e-01 496 2008 8 3.88582e+00 2.05264e+00 673 2008 9 4.04107e+00 2.02129e+00 557 2008 10 2.36750e+00 9.05525e-01 745 2008 11 2.57001e+00 9.59717e-01 323 2008 12 3.30311e+00 5.81235e-01 512 2009 1 3.45828e+00 1.48865e+00 766 2009 2 4.12639e+00 5.86013e-01 629 2009 3 2.48624e+00 8.47708e-01 690 2009 4 4.39587e+00 1.78233e+00 693 2009 5 3.86641e+00 1.61672e+00 330 2009 6 5.11936e+00 1.38380e+00 262 2009 7 4.21692e+00 2.35956e+00 525 2009 8 4.51866e+00 1.35775e+00 608 2009 9 2.76799e+00 1.56267e+00 699 2009 10 2.77578e+00 9.48157e-01 517 2009 11 2.63437e+00 2.86810e-01 395 2009 12 2.34990e+00 6.24688e-01 648 2010 1 2.34769e+00 5.09929e-01 692 2010 2 2.59677e+00 5.98178e-01 576 2010 3 2.69409e+00 5.41583e-01 687 2010 4 3.11032e+00 9.72162e-01 574 2010 5 3.08923e+00 1.49753e+00 751 2010 6 3.92349e+00 1.45874e+00 467 2010 7 4.76328e+00 1.67404e+00 581 2010 8 3.12417e+00 1.17270e+00 517 2010 9 3.61403e+00 1.87749e+00 750 2010 10 2.40670e+00 1.11526e+00 648 2010 11 2.23021e+00 5.64413e-01 344 2010 12 3.06491e+00 1.26748e+00 762 2011 1 1.65780e+00 5.36048e-01 514 2011 2 2.05694e+00 8.29159e-01 526 2011 3 2.56649e+00 1.05654e+00 776 2011 4 3.71794e+00 1.40783e+00 369 2011 5 2.83583e+00 1.32752e+00 315 2011 6 2.59485e+00 1.44108e+00 275 2011 7 4.73019e+00 1.77061e+00 695 2011 8 4.96259e+00 2.33059e+00 580 2011 9 3.81130e+00 1.49777e+00 649 2011 10 3.06261e+00 8.90127e-01 396 2011 11 2.17781e+00 4.88186e-01 505 2011 12 2.60058e+00 7.23013e-01 458 2012 1 3.86751e+00 7.29767e-01 1032 2012 2 3.00927e+00 1.10069e+00 659 2012 3 3.86749e+00 1.59920e+00 765 2012 4 4.32405e+00 1.61476e+00 633 2012 5 3.87476e+00 1.32664e+00 437 2012 6 3.99076e+00 1.42302e+00 705 2012 7 3.46007e+00 1.54421e+00 430 2012 8 4.65938e+00 1.55554e+00 644 2012 9 3.81908e+00 1.56947e+00 826 2012 10 3.54582e+00 1.22751e+00 602 2012 11 2.23243e+00 9.53830e-01 596 2012 12 2.28121e+00 5.35216e-01 408 2013 1 2.52887e+00 5.53013e-01 591 2013 2 2.48214e+00 9.39784e-01 576 2013 3 3.43469e+00 7.16037e-01 362 2013 4 3.21649e+00 8.02648e-01 960 2013 5 4.38607e+00 1.39146e+00 569 2013 6 3.19669e+00 1.96202e+00 610 2013 7 4.19138e+00 1.35852e+00 384 2013 8 3.54390e+00 1.19550e+00 547 2013 9 3.75091e+00 1.20642e+00 825 2013 10 3.06135e+00 8.48443e-01 477 2013 11 2.06548e+00 5.35205e-01 704 2013 12 2.76547e+00 8.27371e-01 320 2014 1 2.80524e+00 8.21731e-01 758 2014 2 3.38189e+00 9.41206e-01 564 2014 3 2.59113e+00 5.46428e-01 582 2014 4 3.04049e+00 7.11599e-01 576 2014 5 4.35715e+00 8.39668e-01 656 2014 6 4.18759e+00 1.19091e+00 482 2014 7 3.46309e+00 2.07123e+00 380 2014 8 4.63570e+00 1.78208e+00 940 2014 9 4.33232e+00 9.63301e-01 777 2014 10 3.32094e+00 1.03712e+00 619 2014 11 2.17732e+00 4.82943e-01 536 2014 12 3.21554e+00 1.71854e+00 137 2015 1 2.15815e+00 6.74857e-01 704 2015 2 1.71344e+00 3.91165e-01 285 2015 3 2.79397e+00 8.51875e-01 778 2015 4 4.07403e+00 1.10328e+00 698 2015 5 4.58926e+00 1.75980e+00 514 2015 6 4.09442e+00 1.54045e+00 310 2015 7 5.03531e+00 2.54087e+00 441 2015 8 4.42227e+00 1.80951e+00 856 2015 9 4.01289e+00 1.09446e+00 708 2015 10 2.00295e+00 6.16971e-01 779 2015 11 2.08788e+00 5.81264e-01 703 2015 12 2.32943e+00 6.69552e-01 502 2016 1 2.65573e+00 1.21293e+00 572 2016 2 2.49306e+00 4.84442e-01 710 2016 3 3.05452e+00 9.00074e-01 576 2016 4 3.35032e+00 1.07541e+00 613 2016 5 3.94231e+00 8.28850e-01 391 2016 6 3.89372e+00 1.43733e+00 733 2016 7 5.16446e+00 1.36719e+00 622 2016 8 4.50203e+00 1.27939e+00 1009 2016 9 2.75148e+00 1.64956e+00 478 2016 10 2.98251e+00 9.57099e-01 570 2016 11 2.58493e+00 9.52484e-01 909 2016 12 1.87381e+00 4.84844e-01 571 2017 1 2.52044e+00 1.01149e+00 647 2017 2 3.08192e+00 7.56648e-01 617 2017 3 3.05380e+00 8.79769e-01 832 2017 4 3.23503e+00 1.26158e+00 428 2017 5 3.93446e+00 1.88963e+00 200 2017 6 3.88172e+00 1.82789e+00 572 2017 7 3.90219e+00 1.61058e+00 564 2017 8 4.36786e+00 9.81766e-01 581 2017 9 3.00375e+00 1.73491e+00 558 2017 10 2.36988e+00 8.96066e-01 826 2017 11 2.76174e+00 8.27616e-01 415 2017 12 3.11021e+00 6.81522e-01 606 2018 1 2.99899e+00 1.12326e+00 896 2018 2 2.44038e+00 5.01228e-01 357 2018 3 1.88865e+00 3.78629e-01 505 2018 4 1.92487e+00 1.18314e+00 448 2018 5 3.32512e+00 1.68358e+00 439 2018 6 4.88410e+00 9.44725e-01 300 2018 7 3.51921e+00 1.13722e+00 544 2018 8 4.39252e+00 1.41417e+00 498 2018 9 4.31685e+00 1.62558e+00 768 2018 10 2.81087e+00 1.33888e+00 514 2018 11 2.15391e+00 2.12863e-01 428 2018 12 2.53935e+00 6.72428e-01 714 2019 1 2.67184e+00 8.73519e-01 654 2019 2 3.33729e+00 8.31150e-01 586 2019 3 3.34005e+00 7.76497e-01 957 2019 4 4.14425e+00 1.39423e+00 454 2019 5 3.28120e+00 1.43850e+00 260 2019 6 3.61793e+00 1.11007e+00 253 2019 7 3.78204e+00 1.36668e+00 775 2019 8 2.77839e+00 1.21637e+00 485 2019 9 2.24096e+00 1.29698e+00 709 2019 10 1.62743e+00 4.19869e-01 320 2019 11 1.98757e+00 5.42237e-01 640 2019 12 2.61191e+00 5.88212e-01 309 2020 1 2.49542e+00 5.55086e-01 640 2020 2 3.03283e+00 9.82471e-01 695 2020 3 2.60400e+00 5.83864e-01 525 2020 4 2.96294e+00 5.10960e-01 293 2020 5 3.91684e+00 1.25636e+00 734 2020 6 3.59825e+00 1.51262e+00 448 2020 7 4.56445e+00 1.22484e+00 650 2020 8 4.36720e+00 5.22942e-01 384 2020 9 2.74702e+00 1.48872e+00 496 2020 10 3.39001e+00 1.19729e+00 704 2020 11 2.20931e+00 9.51393e-01 620 2020 12 2.19656e+00 7.59570e-01 362 2021 1 2.27522e+00 8.43906e-01 628 2021 2 2.54326e+00 3.85942e-01 329 2021 3 3.10041e+00 1.01099e+00 892 2021 4 3.11165e+00 1.20510e+00 741 2021 5 3.98398e+00 1.55895e+00 743 2021 6 4.26687e+00 1.22514e+00 526 2021 7 4.02615e+00 3.95516e-01 393 2021 8 5.19919e+00 1.59347e+00 555 2021 9 3.12574e+00 1.60604e+00 650 2021 10 3.39680e+00 1.32658e+00 555 2021 11 1.96273e+00 7.05775e-01 823 2021 12 2.34602e+00 9.47647e-01 284 2022 1 2.66362e+00 6.90167e-01 464 2022 2 3.36228e+00 7.43618e-01 740 2022 3 3.70002e+00 1.28161e+00 640 2022 4 2.96121e+00 1.48114e+00 252 2022 5 4.42588e+00 1.16502e+00 353 2022 6 4.16665e+00 1.70331e+00 704 2022 7 5.01568e+00 7.83100e-01 692 2022 8 5.53887e+00 1.36091e+00 927 2022 9 3.15297e+00 1.56571e+00 781 2022 10 3.27644e+00 1.23787e+00 639 2022 11 2.91014e+00 1.02925e+00 870 2022 12 2.43351e+00 1.06570e+00 563 2023 1 3.75278e+00 7.69597e-01 456 2023 2 4.11603e+00 1.34909e+00 318 2023 3 3.21193e+00 3.93262e-01 640 2023 4 4.23104e+00 1.15743e+00 419 2023 5 3.35426e+00 1.63781e+00 637 2023 6 3.87047e+00 9.96969e-01 561 2023 7 3.01309e+00 1.12832e+00 640 2023 8 3.08628e+00 1.04674e+00 839 2023 9 3.75642e+00 1.78561e+00 533 2023 10 3.25684e+00 9.92015e-01 666 2023 11 1.85955e+00 4.36511e-01 578 2023 12 2.21874e+00 8.29190e-01 421 2024 1 2.45025e+00 8.11574e-01 547 2024 2 1.87118e+00 6.50470e-01 667 2024 3 3.14749e+00 9.59646e-01 525 2024 4 nan nan 0