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 5.27155e+00 6.67524e-01 512 2002 8 5.61047e+00 1.18870e+00 393 2002 9 4.13476e+00 1.37272e+00 757 2002 10 3.66998e+00 8.28727e-01 625 2002 11 3.09075e+00 1.10898e+00 511 2002 12 3.77121e+00 6.88238e-01 576 2003 1 4.22499e+00 6.59909e-01 669 2003 2 3.15322e+00 9.45960e-01 504 2003 3 4.61064e+00 1.27785e+00 720 2003 4 4.77397e+00 9.38170e-01 421 2003 5 5.57396e+00 7.49417e-01 407 2003 6 5.61016e+00 2.42384e+00 436 2003 7 6.05358e+00 1.21067e+00 775 2003 8 6.90724e+00 1.30522e+00 834 2003 9 6.14086e+00 1.62060e+00 1126 2003 10 5.04234e+00 1.54517e+00 465 2003 11 2.97894e+00 9.72257e-01 596 2003 12 2.36535e+00 3.20304e-01 533 2004 1 4.05247e+00 1.21287e+00 528 2004 2 4.74241e+00 7.94690e-01 853 2004 3 2.74933e+00 1.12630e+00 703 2004 4 3.51906e+00 1.76529e+00 408 2004 5 4.80250e+00 1.54077e+00 463 2004 6 6.15963e+00 1.27206e+00 504 2004 7 6.95799e+00 7.30965e-01 380 2004 8 6.15033e+00 6.51937e-01 640 2004 9 5.40928e+00 1.58383e+00 884 2004 10 4.20520e+00 1.29588e+00 637 2004 11 2.95161e+00 8.38981e-01 757 2004 12 3.78844e+00 2.32634e-01 423 2005 1 1.95346e+00 7.53789e-01 320 2005 2 3.46409e+00 6.06889e-01 531 2005 3 3.61632e+00 9.55184e-01 1003 2005 4 4.56043e+00 1.77872e+00 743 2005 5 3.95458e+00 1.17756e+00 384 2005 6 4.23943e+00 1.84087e+00 404 2005 7 4.98938e+00 1.63697e+00 511 2005 8 5.54518e+00 7.70519e-01 635 2005 9 5.33255e+00 1.37888e+00 1232 2005 10 3.49377e+00 1.41017e+00 574 2005 11 3.01453e+00 7.53162e-01 456 2005 12 3.64535e+00 5.65862e-01 637 2006 1 3.67661e+00 7.73852e-01 741 2006 2 3.60068e+00 1.03824e+00 701 2006 3 3.81632e+00 8.63175e-01 896 2006 4 5.08742e+00 2.11431e+00 721 2006 5 5.36783e+00 1.07848e+00 384 2006 6 6.75946e+00 1.00678e+00 448 2006 7 6.26310e+00 6.18706e-01 560 2006 8 5.57035e+00 1.62641e+00 831 2006 9 5.81143e+00 1.81074e+00 679 2006 10 4.76056e+00 1.07942e+00 916 2006 11 3.49321e+00 7.20454e-01 384 2006 12 3.40800e+00 5.30750e-01 517 2007 1 3.28612e+00 7.27308e-01 629 2007 2 3.39798e+00 1.21274e+00 825 2007 3 3.91053e+00 1.26712e+00 924 2007 4 3.54332e+00 5.95305e-01 384 2007 5 5.17599e+00 9.72700e-01 629 2007 6 4.37461e+00 2.29966e+00 447 2007 7 5.57227e+00 8.93275e-01 544 2007 8 4.56874e+00 1.31647e+00 603 2007 9 5.60598e+00 1.66046e+00 895 2007 10 4.02779e+00 1.55750e+00 667 2007 11 2.78059e+00 1.12559e+00 600 2007 12 3.65305e+00 3.10742e-01 320 2008 1 3.19725e+00 8.36259e-01 453 2008 2 4.32420e+00 7.72992e-01 634 2008 3 3.70678e+00 9.06661e-01 883 2008 4 4.51771e+00 1.17960e+00 527 2008 5 4.76702e+00 1.45012e+00 560 2008 6 5.40658e+00 1.77845e+00 612 2008 7 6.05134e+00 8.58276e-01 530 2008 8 5.32422e+00 1.79165e+00 886 2008 9 4.91356e+00 2.01959e+00 737 2008 10 4.12777e+00 1.26607e+00 787 2008 11 3.29928e+00 1.18397e+00 507 2008 12 3.43555e+00 6.20571e-01 510 2009 1 4.27759e+00 1.30777e+00 832 2009 2 4.59774e+00 6.37391e-01 739 2009 3 3.81046e+00 1.25144e+00 576 2009 4 4.40462e+00 1.72536e+00 707 2009 5 4.81423e+00 1.99196e+00 383 2009 6 5.28542e+00 2.43726e+00 222 2009 7 5.48323e+00 1.73221e+00 751 2009 8 6.51319e+00 9.11715e-01 540 2009 9 4.56822e+00 1.92202e+00 816 2009 10 4.39120e+00 1.19482e+00 544 2009 11 3.00471e+00 1.14702e+00 399 2009 12 3.18131e+00 6.93546e-01 592 2010 1 3.45713e+00 7.17895e-01 830 2010 2 3.22922e+00 7.16967e-01 681 2010 3 2.89581e+00 7.45276e-01 700 2010 4 3.58994e+00 8.54913e-01 556 2010 5 5.33711e+00 1.15287e+00 786 2010 6 5.38439e+00 9.65744e-01 364 2010 7 5.92971e+00 1.33651e+00 701 2010 8 4.51844e+00 7.51575e-01 678 2010 9 4.87310e+00 1.50915e+00 839 2010 10 3.87741e+00 7.65150e-01 634 2010 11 2.85530e+00 4.53636e-01 384 2010 12 3.76069e+00 1.13560e+00 563 2011 1 3.00095e+00 8.79595e-01 640 2011 2 3.66626e+00 1.00812e+00 661 2011 3 3.05477e+00 1.25387e+00 896 2011 4 5.52179e+00 1.62854e+00 448 2011 5 4.39225e+00 1.19640e+00 318 2011 6 5.99500e+00 3.11477e+00 482 2011 7 6.06663e+00 1.10743e+00 775 2011 8 6.90543e+00 1.95777e+00 790 2011 9 5.48465e+00 1.59646e+00 820 2011 10 3.96058e+00 1.47102e+00 814 2011 11 3.27511e+00 7.90852e-01 512 2011 12 3.52527e+00 4.59711e-01 462 2012 1 4.49462e+00 4.08028e-01 917 2012 2 4.10534e+00 1.17037e+00 764 2012 3 4.33301e+00 1.35302e+00 768 2012 4 5.37179e+00 1.54452e+00 920 2012 5 5.11663e+00 9.11177e-01 448 2012 6 5.45597e+00 1.37734e+00 641 2012 7 5.52150e+00 9.40905e-01 576 2012 8 5.16882e+00 1.35252e+00 550 2012 9 4.71169e+00 1.81979e+00 840 2012 10 4.12106e+00 1.19663e+00 540 2012 11 2.92117e+00 1.46582e+00 561 2012 12 2.22290e+00 3.19756e-01 384 2013 1 2.95484e+00 4.18098e-01 463 2013 2 3.19076e+00 1.28925e+00 552 2013 3 4.04990e+00 8.09124e-01 448 2013 4 4.32165e+00 8.21618e-01 987 2013 5 5.73642e+00 1.30654e+00 553 2013 6 4.97990e+00 8.48792e-01 508 2013 7 6.00331e+00 1.26904e+00 394 2013 8 4.48388e+00 9.84226e-01 647 2013 9 4.26636e+00 8.58120e-01 896 2013 10 4.94824e+00 1.46054e+00 611 2013 11 2.32523e+00 5.97299e-01 764 2013 12 3.46403e+00 3.53574e-01 202 2014 1 3.71874e+00 1.03227e+00 704 2014 2 4.63295e+00 4.68691e-01 576 2014 3 3.35072e+00 8.04921e-01 640 2014 4 3.69194e+00 1.10748e+00 576 2014 5 5.62398e+00 1.70360e+00 714 2014 6 4.85398e+00 1.65384e+00 700 2014 7 5.30623e+00 1.15935e+00 585 2014 8 5.22814e+00 1.97469e+00 867 2014 9 5.75261e+00 7.64508e-01 912 2014 10 5.06540e+00 1.07817e+00 761 2014 11 2.97483e+00 9.22737e-01 705 2014 12 3.51056e+00 6.77326e-01 275 2015 1 2.73959e+00 8.89474e-01 651 2015 2 2.38384e+00 1.03718e+00 512 2015 3 3.31078e+00 9.82620e-01 706 2015 4 5.86948e+00 1.22652e+00 704 2015 5 5.40342e+00 1.66764e+00 509 2015 6 6.02499e+00 1.22073e+00 265 2015 7 6.10475e+00 2.36001e+00 523 2015 8 6.84032e+00 8.20975e-01 848 2015 9 4.85657e+00 1.47933e+00 896 2015 10 3.16302e+00 9.47722e-01 556 2015 11 2.85425e+00 5.16874e-01 704 2015 12 3.11902e+00 2.72254e-01 512 2016 1 2.63642e+00 3.32785e-01 541 2016 2 3.33088e+00 4.54292e-01 640 2016 3 4.35616e+00 1.24409e+00 448 2016 4 4.30676e+00 1.19539e+00 688 2016 5 5.09785e+00 1.79872e+00 285 2016 6 5.07020e+00 7.46985e-01 627 2016 7 6.25943e+00 1.54329e+00 769 2016 8 5.98057e+00 1.24926e+00 922 2016 9 3.55466e+00 1.38432e+00 615 2016 10 4.20051e+00 1.27157e+00 739 2016 11 2.71330e+00 3.84403e-01 832 2016 12 2.49127e+00 7.69061e-01 717 2017 1 3.20648e+00 7.20855e-01 556 2017 2 4.15449e+00 7.53044e-01 640 2017 3 4.58005e+00 7.46756e-01 895 2017 4 4.29426e+00 1.42602e+00 415 2017 5 4.28957e+00 1.46379e+00 375 2017 6 4.55598e+00 1.79242e+00 548 2017 7 4.64249e+00 1.41567e+00 705 2017 8 4.55688e+00 1.87001e+00 827 2017 9 3.86221e+00 1.34719e+00 663 2017 10 2.75784e+00 1.06709e+00 929 2017 11 3.40061e+00 1.20032e+00 570 2017 12 3.87413e+00 2.30888e-01 579 2018 1 3.89275e+00 1.12034e+00 765 2018 2 3.76071e+00 2.53130e-01 320 2018 3 2.41706e+00 7.30828e-01 477 2018 4 3.09306e+00 1.69455e+00 627 2018 5 4.76002e+00 1.67699e+00 524 2018 6 6.00910e+00 4.67167e-01 384 2018 7 5.61091e+00 9.49237e-01 702 2018 8 6.10289e+00 1.10242e+00 659 2018 9 5.14319e+00 1.43022e+00 576 2018 10 3.10268e+00 1.10811e+00 687 2018 11 3.00187e+00 8.86245e-01 544 2018 12 3.20254e+00 4.37705e-01 704 2019 1 3.55727e+00 9.54635e-01 615 2019 2 4.00218e+00 1.20895e+00 700 2019 3 4.56014e+00 8.17431e-01 958 2019 4 5.45921e+00 2.47947e+00 589 2019 5 4.46385e+00 1.02569e+00 326 2019 6 4.59021e+00 2.23616e+00 530 2019 7 5.18117e+00 8.67910e-01 848 2019 8 4.41358e+00 1.24957e+00 450 2019 9 2.88417e+00 1.44544e+00 835 2019 10 3.27410e+00 1.80134e+00 423 2019 11 2.88515e+00 6.55599e-01 652 2019 12 3.30005e+00 4.00114e-01 384 2020 1 3.72657e+00 5.98046e-01 678 2020 2 4.40910e+00 7.49589e-01 813 2020 3 3.48238e+00 3.36905e-01 517 2020 4 3.02274e+00 5.51697e-01 448 2020 5 5.27489e+00 1.50291e+00 836 2020 6 4.91880e+00 1.13439e+00 512 2020 7 5.29400e+00 5.23666e-01 643 2020 8 5.33014e+00 3.74993e-01 320 2020 9 4.97483e+00 1.49467e+00 575 2020 10 4.65351e+00 1.51521e+00 768 2020 11 3.05314e+00 7.62759e-01 761 2020 12 2.40186e+00 4.30744e-01 288 2021 1 2.97377e+00 8.68454e-01 630 2021 2 3.96374e+00 6.69244e-01 422 2021 3 4.02379e+00 7.95997e-01 960 2021 4 3.98959e+00 1.02893e+00 760 2021 5 4.91303e+00 1.65351e+00 659 2021 6 5.02251e+00 5.54739e-01 512 2021 7 4.41667e+00 6.47864e-01 450 2021 8 5.68994e+00 1.01315e+00 514 2021 9 4.67525e+00 1.90986e+00 773 2021 10 4.00433e+00 1.03351e+00 680 2021 11 2.89966e+00 9.50089e-01 770 2021 12 2.94706e+00 9.02674e-01 256 2022 1 3.46661e+00 7.95863e-01 292 2022 2 4.45428e+00 5.30840e-01 759 2022 3 4.33387e+00 1.20875e+00 582 2022 4 4.09970e+00 6.64495e-01 192 2022 5 5.54723e+00 8.06729e-01 345 2022 6 5.29698e+00 1.30291e+00 786 2022 7 6.07889e+00 7.66884e-01 832 2022 8 6.30869e+00 9.51606e-01 841 2022 9 4.35431e+00 1.64436e+00 826 2022 10 4.44939e+00 1.63504e+00 785 2022 11 3.79333e+00 1.08444e+00 794 2022 12 3.48318e+00 6.53698e-01 640 2023 1 4.89532e+00 5.43427e-01 354 2023 2 5.64465e+00 1.29406e+00 320 2023 3 4.75948e+00 6.62542e-01 636 2023 4 5.59030e+00 8.73713e-01 448 2023 5 4.21446e+00 1.87354e+00 624 2023 6 5.62639e+00 1.27858e+00 576 2023 7 4.42853e+00 1.67946e+00 823 2023 8 4.50485e+00 6.57738e-01 832 2023 9 4.84720e+00 1.67276e+00 704 2023 10 4.54935e+00 1.33914e+00 883 2023 11 2.32715e+00 1.08372e+00 647 2023 12 2.97612e+00 3.55012e-01 389 2024 1 2.86565e+00 6.28483e-01 383 2024 2 3.04005e+00 7.77317e-01 675 2024 3 3.45523e+00 9.96223e-01 516 2024 4 nan nan 0