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 8.13048e-01 6.31387e-01 322 2002 8 6.12505e-01 3.22456e-01 327 2002 9 1.17030e+00 1.39476e+00 438 2002 10 1.20751e+00 1.29570e+00 1175 2002 11 3.04703e+00 3.59671e+00 910 2002 12 3.13072e+00 1.61428e+00 512 2003 1 4.13032e+00 5.01968e+00 613 2003 2 1.42801e+00 1.85833e+00 639 2003 3 8.44053e-01 5.69152e-01 315 2003 4 1.49199e+00 1.34264e+00 734 2003 5 7.66695e-01 3.07917e-01 453 2003 6 9.72632e-01 1.69084e-01 186 2003 7 4.67411e-01 8.15964e-01 322 2003 8 3.59616e-01 3.90063e-01 434 2003 9 9.04279e-01 3.28787e+00 426 2003 10 3.84978e-01 5.88300e-01 962 2003 11 2.38211e+00 3.61387e+00 954 2003 12 4.16840e+00 4.12298e+00 834 2004 1 2.92080e+00 3.68424e+00 932 2004 2 3.44413e+00 3.54527e+00 688 2004 3 7.88129e-01 9.88377e-01 1241 2004 4 8.50652e-01 3.70082e-01 384 2004 5 4.68175e-01 1.91072e-01 500 2004 6 6.07293e-01 5.10328e-01 510 2004 7 8.50342e-01 3.24902e-01 479 2004 8 1.27549e+00 1.59590e+00 592 2004 9 4.06526e+00 1.71945e+00 292 2004 10 1.10796e+00 7.96463e-01 960 2004 11 5.94899e-01 5.34963e-01 974 2004 12 6.22381e+00 6.22218e+00 651 2005 1 4.45003e+00 4.07825e+00 949 2005 2 1.99276e+00 2.31835e+00 958 2005 3 1.18467e+00 6.60695e-01 314 2005 4 3.06098e+00 1.29159e+00 576 2005 5 6.06318e-01 2.86265e-01 462 2005 6 8.81980e-01 1.55052e-01 128 2005 7 1.08345e+00 1.07162e+00 508 2005 8 2.74877e-01 2.34527e-01 456 2005 9 7.99065e-01 6.61322e-01 579 2005 10 3.16023e+00 4.51639e+00 612 2005 11 2.83309e+00 3.72586e+00 1026 2005 12 4.58652e+00 2.72169e+00 704 2006 1 5.27630e+00 4.23874e+00 534 2006 2 4.04453e+00 2.50288e+00 676 2006 3 2.14133e+00 1.22915e+00 942 2006 4 6.87096e-01 4.84001e-01 575 2006 5 7.61612e-01 5.31602e-01 665 2006 6 9.03205e-01 4.55960e-01 705 2006 7 5.64668e-01 3.27158e-01 505 2006 8 5.59154e-01 3.01143e-01 347 2006 9 5.56020e-01 2.44746e-01 692 2006 10 8.79240e-01 9.93923e-01 1016 2006 11 1.61429e+00 1.28702e+00 616 2006 12 1.02723e+00 9.52105e-01 482 2007 1 2.17117e+00 1.91784e+00 553 2007 2 2.06088e+00 1.54021e+00 512 2007 3 2.04977e+00 1.58461e+00 666 2007 4 1.95676e+00 1.51465e+00 461 2007 5 6.85738e-01 6.20158e-01 198 2007 6 1.07318e+00 8.75771e-01 433 2007 7 4.60784e-01 2.84237e-01 585 2007 8 9.14708e-01 6.68838e-01 734 2007 9 1.24264e+00 4.88168e-01 829 2007 10 9.54319e-01 5.03513e-01 512 2007 11 9.45376e-01 9.58162e-01 1026 2007 12 2.05663e+00 2.68962e+00 1323 2008 1 3.13245e+00 4.42291e+00 581 2008 2 1.75541e+00 2.43590e+00 852 2008 3 2.29696e+00 1.49512e+00 478 2008 4 1.22194e+00 1.41817e+00 865 2008 5 9.23362e-01 4.04419e-01 582 2008 6 6.94561e-01 2.67222e-01 511 2008 7 6.83250e-01 5.91432e-01 364 2008 8 1.14527e+00 4.35798e-01 339 2008 9 1.48611e+00 1.23894e+00 675 2008 10 2.11942e+00 2.96535e+00 961 2008 11 2.66984e+00 3.17453e+00 1269 2008 12 4.94492e+00 5.54041e+00 1243 2009 1 3.47767e+00 2.80358e+00 832 2009 2 3.97926e+00 3.57837e+00 774 2009 3 2.04940e+00 1.46941e+00 647 2009 4 2.80086e+00 1.43291e+00 432 2009 5 1.10400e+00 6.62448e-01 640 2009 6 1.05690e+00 8.36615e-01 298 2009 7 5.74377e-01 3.54640e-01 443 2009 8 7.60916e-01 3.52450e-01 440 2009 9 7.73177e-01 3.63799e-01 708 2009 10 9.65654e-01 1.26846e+00 1085 2009 11 1.14991e+00 1.09316e+00 797 2009 12 3.86380e+00 2.41607e+00 465 2010 1 8.28264e+00 5.50676e+00 644 2010 2 5.70437e+00 1.05687e+00 150 2010 3 3.16724e+00 1.70023e+00 465 2010 4 4.47703e-01 3.40921e-01 459 2010 5 8.94917e-01 6.18901e-01 662 2010 6 4.20229e-01 2.92488e-01 791 2010 7 7.41574e-01 4.74279e-01 499 2010 8 1.53171e+00 9.13861e-01 510 2010 9 1.31830e+00 8.05641e-01 554 2010 10 1.19118e+00 4.20880e-01 1026 2010 11 1.72208e+00 1.98800e+00 1088 2010 12 8.99245e+00 4.47206e+00 762 2011 1 6.82664e+00 4.53824e+00 617 2011 2 1.85049e+00 1.70392e+00 1001 2011 3 1.64451e+00 9.71228e-01 1135 2011 4 2.40825e+00 1.12012e+00 726 2011 5 1.28796e+00 7.37382e-01 532 2011 6 1.11555e+00 3.92695e-01 523 2011 7 8.64221e-01 4.79933e-01 434 2011 8 2.01491e+00 1.14703e+00 384 2011 9 2.91049e+00 1.06245e+00 535 2011 10 3.88615e+00 1.76476e+00 360 2011 11 2.92450e+00 2.37222e+00 724 2011 12 3.99701e+00 3.62186e+00 1205 2012 1 3.26270e+00 2.83113e+00 1208 2012 2 2.10243e+00 1.15372e+00 616 2012 3 1.65667e+00 1.08866e+00 1150 2012 4 1.19768e+00 6.94131e-01 619 2012 5 1.04990e+00 6.08648e-01 472 2012 6 1.60615e+00 4.94102e-01 285 2012 7 1.49481e+00 1.08206e+00 444 2012 8 1.13525e+00 1.84222e+00 426 2012 9 1.13891e+00 9.32968e-01 455 2012 10 6.57552e-01 6.51947e-01 818 2012 11 2.37253e+00 2.00570e+00 815 2012 12 4.09855e+00 4.68305e+00 765 2013 1 1.60791e+00 8.43127e-01 969 2013 2 3.17034e+00 3.14168e+00 889 2013 3 2.80938e+00 1.71252e+00 832 2013 4 1.89561e+00 1.29047e+00 668 2013 5 1.00861e+00 4.41707e-01 640 2013 6 1.14603e+00 1.38694e+00 542 2013 7 7.99287e-01 5.47337e-01 339 2013 8 2.49888e-01 1.51211e-01 294 2013 9 5.85745e-01 6.14762e-01 729 2013 10 3.89954e-01 3.13839e-01 836 2013 11 9.76218e-01 7.03832e-01 269 2013 12 7.92915e-01 5.85030e-01 640 2014 1 3.41132e+00 3.19374e+00 665 2014 2 2.25597e+00 2.79724e+00 744 2014 3 2.97686e+00 2.34264e+00 805 2014 4 1.39282e+00 1.80909e+00 428 2014 5 2.06892e+00 1.05034e+00 572 2014 6 1.26974e+00 4.01734e-01 446 2014 7 8.74151e-01 4.74594e-01 372 2014 8 9.39338e-01 7.81044e-01 397 2014 9 1.90877e+00 9.00023e-01 392 2014 10 4.19340e-01 3.32988e-01 1131 2014 11 2.24204e+00 2.39776e+00 869 2014 12 9.98519e-01 1.31128e+00 793 2015 1 3.14611e+00 4.49970e+00 576 2015 2 5.05810e+00 3.50146e+00 731 2015 3 1.09147e+00 1.27987e+00 1103 2015 4 6.45831e-01 3.01669e-01 443 2015 5 1.65645e+00 4.55581e-01 917 2015 6 1.10118e+00 4.48925e-01 605 2015 7 1.32907e+00 6.73837e-01 256 2015 8 1.55198e+00 5.77006e-01 448 2015 9 1.42352e+00 1.73323e+00 303 2015 10 8.51619e-01 1.04362e+00 601 2015 11 6.91434e-01 4.27367e-01 949 2015 12 4.35529e-01 3.47523e-01 393 2016 1 1.89418e+00 1.84636e+00 384 2016 2 3.64820e+00 2.27252e+00 712 2016 3 3.35129e+00 2.48289e+00 497 2016 4 1.35911e+00 1.10903e+00 580 2016 5 6.52387e-01 4.00178e-01 753 2016 6 6.00656e-01 5.15947e-01 486 2016 7 4.67975e-01 2.77542e-01 555 2016 8 4.11073e-01 2.67367e-01 357 2016 9 7.41651e-01 7.43400e-01 706 2016 10 7.71483e-01 6.26025e-01 781 2016 11 1.01065e+00 6.95583e-01 951 2016 12 1.03172e+00 2.38350e-01 768 2017 1 3.78237e+00 4.05881e+00 802 2017 2 2.73571e+00 1.28266e+00 831 2017 3 2.13809e+00 1.43023e+00 893 2017 4 3.06046e+00 1.18439e+00 541 2017 5 1.94093e+00 1.25966e+00 707 2017 6 6.91620e-01 3.75830e-01 195 2017 7 3.73294e-01 2.53604e-01 295 2017 8 7.04783e-01 3.27792e-01 479 2017 9 1.96713e+00 3.12544e+00 865 2017 10 1.16011e+00 1.80300e+00 577 2017 11 8.35201e-01 9.16425e-01 919 2017 12 1.86297e+00 2.03761e+00 1239 2018 1 4.99833e+00 3.61928e+00 704 2018 2 9.06370e-01 4.73377e-01 962 2018 3 2.35424e+00 2.02558e+00 1086 2018 4 8.24002e-01 4.52906e-01 934 2018 5 6.72752e-01 1.66515e-01 286 2018 6 7.69345e-01 3.05900e-01 320 2018 7 4.84946e-01 2.38276e-01 373 2018 8 8.03329e-01 3.23425e-01 216 2018 9 5.14768e-01 3.59982e-01 662 2018 10 1.11476e+00 1.03368e+00 768 2018 11 2.89964e+00 3.92987e+00 515 2018 12 4.54834e+00 5.01793e+00 573 2019 1 5.34340e+00 3.58436e+00 555 2019 2 2.16324e+00 1.58541e+00 751 2019 3 2.78817e+00 2.28356e+00 884 2019 4 2.42866e+00 1.50048e+00 494 2019 5 5.54090e-01 2.78909e-01 674 2019 6 7.50434e-01 1.15575e+00 507 2019 7 7.45263e-01 2.53551e-01 384 2019 8 4.17278e-01 2.90822e-01 383 2019 9 5.10749e-01 5.32747e-01 334 2019 10 7.24419e-01 8.12342e-01 701 2019 11 1.10702e+00 5.50174e-01 736 2019 12 2.20212e+00 1.78511e+00 749 2020 1 3.31874e+00 3.75512e+00 801 2020 2 2.90591e+00 3.16746e+00 896 2020 3 1.29605e+00 1.75709e+00 1050 2020 4 1.77029e+00 1.60397e+00 424 2020 5 2.85959e-01 1.79441e-01 464 2020 6 6.89418e-01 3.00698e-01 427 2020 7 6.38253e-01 3.53242e-01 384 2020 8 6.01457e-01 3.09715e-01 390 2020 9 6.48968e-01 9.89971e-01 281 2020 10 3.51700e-01 8.94315e-01 542 2020 11 1.19939e+00 1.45093e+00 712 2020 12 3.50061e+00 2.83212e+00 600 2021 1 1.47140e+00 1.07247e+00 625 2021 2 2.46829e+00 2.44443e+00 850 2021 3 1.14686e+00 1.51122e+00 818 2021 4 7.09662e-01 3.49495e-01 829 2021 5 1.24309e+00 6.30045e-01 865 2021 6 7.21069e-01 1.61592e-01 128 2021 7 1.01009e+00 4.03640e-01 388 2021 8 6.06562e-01 2.91346e-01 316 2021 9 5.48766e-01 4.36411e-01 575 2021 10 3.82415e-01 2.08349e-01 879 2021 11 1.56659e+00 1.85117e+00 714 2021 12 1.91375e+00 2.29047e+00 1026 2022 1 2.84725e+00 1.85249e+00 689 2022 2 2.46020e+00 2.50898e+00 1054 2022 3 1.52118e+00 1.86347e+00 989 2022 4 8.40831e-01 5.38810e-01 384 2022 5 8.35262e-01 3.68732e-01 534 2022 6 4.16981e-01 2.58056e-01 453 2022 7 3.58952e-01 2.44947e-01 237 2022 8 6.42051e-01 3.21505e-01 598 2022 9 9.03588e-01 3.80947e-01 486 2022 10 2.18441e+00 1.84400e+00 865 2022 11 1.72132e+00 1.07946e+00 768 2022 12 2.14335e+00 1.71710e+00 938 2023 1 2.08340e+00 1.73209e+00 800 2023 2 1.39700e+00 1.13329e+00 1152 2023 3 4.65324e+00 2.84532e+00 840 2023 4 1.79960e+00 1.36186e+00 518 2023 5 1.43821e+00 1.26296e+00 641 2023 6 1.02522e+00 2.20338e+00 362 2023 7 1.15471e+00 5.50243e-01 463 2023 8 9.40219e-01 4.36693e-01 341 2023 9 7.42431e-01 4.51045e-01 671 2023 10 2.08481e+00 2.99546e+00 883 2023 11 5.99755e-01 1.01105e+00 851 2023 12 3.84328e+00 4.48129e+00 315 2024 1 1.58490e+00 2.17960e+00 144 2024 2 1.91877e+00 1.52927e+00 817 2024 3 1.91588e+00 1.51768e+00 596 2024 4 nan nan 0