YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 2.53844e+00 5.40969e-02 45 2000 3 3.10579e+00 5.04800e-01 241 2000 4 4.69235e+00 1.99674e+00 49 2000 5 7.39875e+00 6.97090e-01 92 2000 6 1.52444e+01 2.57726e+00 217 2000 7 1.93945e+01 1.04724e+00 1414 2000 8 2.15180e+01 8.43786e-01 846 2000 9 1.98673e+01 2.57210e+00 709 2000 10 1.21533e+01 5.94305e-01 495 2000 11 1.02172e+01 1.13188e+00 501 2000 12 5.47103e+00 1.69146e+00 273 2001 1 2.41966e+00 3.88347e-01 116 2001 2 2.34026e+00 3.50505e-01 313 2001 3 2.29986e+00 3.51015e-01 356 2001 4 3.43245e+00 7.57599e-01 296 2001 5 8.58404e+00 1.26514e+00 94 2001 6 1.33039e+01 1.96744e+00 87 2001 7 1.80208e+01 1.65655e+00 781 2001 8 2.21611e+01 1.54287e+00 1420 2001 9 1.90998e+01 1.68657e+00 1530 2001 10 1.44622e+01 2.74762e+00 396 2001 11 5.44387e+00 3.58222e-01 252 2001 12 5.40569e+00 4.84938e-01 620 2002 1 4.18156e+00 4.34861e-01 279 2002 2 3.59670e+00 3.73309e-01 577 2002 3 3.55216e+00 4.04163e-01 347 2002 4 4.69916e+00 1.24847e+00 376 2002 5 5.57923e+00 5.15132e-01 345 2002 6 1.72884e+01 3.51594e+00 343 2002 7 2.18789e+01 1.20067e+00 2968 2002 8 2.19132e+01 1.46348e+00 2582 2002 9 2.10989e+01 1.75726e+00 3078 2002 10 1.50796e+01 2.50655e+00 1391 2002 11 7.88825e+00 1.11675e+00 658 2002 12 5.10118e+00 6.59632e-01 604 2003 1 2.87748e+00 5.96064e-01 246 2003 2 1.72590e+00 7.31559e-01 256 2003 3 1.46046e+00 6.93240e-01 262 2003 4 2.43695e+00 6.53957e-01 382 2003 5 9.23452e+00 1.83514e+00 146 2003 6 1.50170e+01 3.23429e+00 614 2003 7 1.61520e+01 1.54084e+00 1102 2003 8 2.22835e+01 1.71512e+00 2935 2003 9 1.88786e+01 1.07144e+00 2407 2003 10 1.08343e+01 4.35942e+00 333 2003 11 6.66675e+00 8.20184e-01 775 2003 12 4.58347e+00 1.01337e+00 698 2004 1 3.35463e+00 8.54621e-01 205 2004 2 1.90053e+00 5.12803e-01 504 2004 3 2.41805e+00 4.51242e-01 315 2004 4 3.50124e+00 8.48068e-01 416 2004 5 7.01599e+00 2.55480e+00 243 2004 6 1.49430e+01 1.94311e+00 1188 2004 7 1.87870e+01 1.80547e+00 1051 2004 8 2.04268e+01 1.04011e+00 1958 2004 9 2.01917e+01 7.00181e-01 3330 2004 10 1.70362e+01 2.71603e+00 1311 2004 11 8.70039e+00 1.14419e+00 899 2004 12 4.62973e+00 1.15924e+00 496 2005 1 2.66918e+00 7.76639e-01 147 2005 2 9.63621e-01 3.52454e-01 214 2005 3 1.60033e+00 5.36500e-01 745 2005 4 3.96636e+00 1.22136e+00 346 2005 5 8.41092e+00 2.88558e+00 747 2005 6 1.91810e+01 2.98854e+00 1582 2005 7 2.28165e+01 2.01158e+00 2876 2005 8 2.17424e+01 1.26060e+00 2432 2005 9 2.13046e+01 8.43184e-01 3670 2005 10 1.37788e+01 1.92937e+00 823 2005 11 8.23663e+00 1.95898e+00 701 2005 12 3.79982e+00 6.13910e-01 313 2006 1 3.23236e+00 5.29345e-01 541 2006 2 2.98480e+00 5.66289e-01 432 2006 3 3.19113e+00 4.56203e-01 1449 2006 4 4.65589e+00 7.67080e-01 643 2006 5 9.84263e+00 3.58658e+00 602 2006 6 1.76017e+01 1.76480e+00 1319 2006 7 1.98987e+01 1.52574e+00 2485 2006 8 2.10780e+01 1.43359e+00 2352 2006 9 1.87654e+01 1.03972e+00 1119 2006 10 1.25552e+01 3.14959e+00 549 2006 11 5.58309e+00 4.21111e-01 435 2006 12 5.18734e+00 5.24026e-01 611 2007 1 4.51211e+00 4.65023e-01 643 2007 2 2.54301e+00 6.55621e-01 412 2007 3 2.38989e+00 3.80258e-01 473 2007 4 3.00769e+00 5.73314e-01 303 2007 5 1.07655e+01 2.00774e+00 807 2007 6 1.83457e+01 2.01243e+00 2214 2007 7 1.94839e+01 1.87751e+00 2441 2007 8 2.15995e+01 1.69047e+00 3100 2007 9 1.91492e+01 1.25371e+00 2881 2007 10 1.51807e+01 2.35934e+00 1318 2007 11 8.72050e+00 2.79230e+00 952 2007 12 3.79492e+00 7.00484e-01 245 2008 1 3.11932e+00 4.08721e-01 330 2008 2 2.28126e+00 4.38604e-01 361 2008 3 1.98095e+00 8.76971e-01 909 2008 4 3.50562e+00 1.14745e+00 291 2008 5 7.28844e+00 2.03265e+00 716 2008 6 1.52319e+01 1.95532e+00 1211 2008 7 1.88784e+01 2.05238e+00 1964 2008 8 1.96640e+01 1.83071e+00 2769 2008 9 1.95275e+01 1.42081e+00 2575 2008 10 1.52977e+01 1.98150e+00 1940 2008 11 6.66117e+00 1.78567e+00 489 2008 12 3.28259e+00 7.86443e-01 249 2009 1 2.49216e+00 7.54473e-01 451 2009 2 2.06253e+00 6.01840e-01 683 2009 3 2.03687e+00 7.08305e-01 719 2009 4 3.33827e+00 9.93237e-01 449 2009 5 6.74713e+00 2.42439e+00 466 2009 6 1.66941e+01 3.19808e+00 1463 2009 7 1.82224e+01 1.10232e+00 1920 2009 8 2.04788e+01 1.82354e+00 2365 2009 9 1.97658e+01 7.04429e-01 2914 2009 10 9.18022e+00 3.57665e+00 672 2009 11 8.94272e+00 8.88272e-01 1367 2009 12 6.31089e+00 1.23984e+00 659 2010 1 3.16046e+00 7.21254e-01 294 2010 2 2.31064e+00 4.53368e-01 782 2010 3 2.78536e+00 1.09586e+00 999 2010 4 5.07017e+00 8.32061e-01 504 2010 5 1.60411e+01 5.04991e+00 822 2010 6 1.80656e+01 1.54691e+00 1507 2010 7 2.11218e+01 1.95633e+00 2620 2010 8 2.19170e+01 9.48505e-01 2850 2010 9 1.76625e+01 3.86026e+00 1124 2010 10 1.49143e+01 8.74516e-01 1779 2010 11 6.99388e+00 6.32026e-01 1107 2010 12 4.39029e+00 5.35276e-01 276 2011 1 2.78934e+00 6.36754e-01 342 2011 2 1.47461e+00 5.21102e-01 494 2011 3 2.07033e+00 4.49355e-01 1025 2011 4 2.82645e+00 7.26004e-01 476 2011 5 8.45305e+00 5.07228e+00 243 2011 6 1.73065e+01 2.18405e+00 1382 2011 7 2.21596e+01 1.42928e+00 3220 2011 8 2.21354e+01 1.22629e+00 2173 2011 9 1.90632e+01 1.18092e+00 1771 2011 10 1.48527e+01 3.08421e+00 1899 2011 11 7.48817e+00 8.35727e-01 968 2011 12 5.79950e+00 5.86654e-01 915 2012 1 3.86724e+00 1.00946e+00 515 2012 2 3.69106e+00 4.09684e-01 916 2012 3 4.73114e+00 1.07371e+00 601 2012 4 5.79150e+00 5.85865e-01 1532 2012 5 1.44396e+01 3.40226e+00 1266 2012 6 1.81948e+01 2.46688e+00 1649 2012 7 2.32505e+01 1.30814e+00 3520 2012 8 2.27484e+01 1.45805e+00 3415 2012 9 2.07903e+01 2.22844e+00 2075 2012 10 1.02788e+01 1.09852e+00 645 2012 11 8.63662e+00 1.01023e+00 786 2012 12 5.54290e+00 9.74345e-01 571 2013 1 3.97217e+00 7.87757e-01 376 2013 2 2.47862e+00 6.01821e-01 474 2013 3 2.61663e+00 5.26284e-01 709 2013 4 3.86838e+00 7.92386e-01 952 2013 5 8.67954e+00 1.76347e+00 390 2013 6 1.46706e+01 2.63983e+00 1408 2013 7 2.33290e+01 2.43694e+00 2040 2013 8 2.02744e+01 1.43901e+00 2976 2013 9 1.86165e+01 2.59787e+00 1883 2013 10 1.59566e+01 1.32522e+00 1527 2013 11 5.26802e+00 1.01738e+00 875 2013 12 3.44640e+00 8.73795e-01 265 2014 1 2.51563e+00 2.92080e-01 126 2014 2 1.64718e+00 3.49090e-01 374 2014 3 1.06683e+00 4.97231e-01 698 2014 4 2.45112e+00 7.93844e-01 666 2014 5 6.54321e+00 4.33268e+00 458 2014 6 1.69962e+01 3.11064e+00 954 2014 7 1.76854e+01 1.42916e+00 2443 2014 8 1.97768e+01 1.24156e+00 2481 2014 9 1.79837e+01 2.14703e+00 2530 2014 10 1.30023e+01 2.98685e+00 637 2014 11 6.46819e+00 1.27328e+00 580 2014 12 4.27852e+00 5.13654e-01 640 2015 1 2.54297e+00 6.98257e-01 438 2015 2 nan nan 0 2015 3 8.88326e-01 3.36206e-01 436 2015 4 2.18457e+00 1.36076e+00 210 2015 5 7.50141e+00 3.33910e+00 124 2015 6 1.49778e+01 1.90561e+00 794 2015 7 2.02980e+01 2.29890e+00 2826 2015 8 2.01326e+01 1.58054e+00 1983 2015 9 2.04899e+01 1.42624e+00 2483 2015 10 1.50383e+01 2.58133e+00 1366 2015 11 7.56829e+00 1.31170e+00 1200 2015 12 5.78884e+00 3.85470e-01 203 2016 1 3.66770e+00 8.11544e-01 341 2016 2 3.27858e+00 8.94131e-01 401 2016 3 3.35118e+00 5.00070e-01 797 2016 4 4.15606e+00 1.36658e+00 1084 2016 5 1.06487e+01 3.43512e+00 1033 2016 6 1.74886e+01 1.75657e+00 1439 2016 7 1.95170e+01 1.84701e+00 2456 2016 8 2.27228e+01 1.36904e+00 3544 2016 9 2.19729e+01 1.34586e+00 3389 2016 10 1.78116e+01 1.30072e+00 2205 2016 11 1.22771e+01 1.94734e+00 2063 2016 12 4.37759e+00 7.40401e-01 576 2017 1 3.99321e+00 4.08189e-01 399 2017 2 3.42015e+00 4.41478e-01 491 2017 3 3.36062e+00 4.02293e-01 485 2017 4 4.41384e+00 1.01117e+00 606 2017 5 8.19764e+00 2.08564e+00 345 2017 6 1.59765e+01 1.99914e+00 1116 2017 7 1.95312e+01 2.04077e+00 2017 2017 8 2.08935e+01 1.68625e+00 2588 2017 9 2.07497e+01 2.16079e+00 3667 2017 10 1.62386e+01 1.36921e+00 1552 2017 11 6.64057e+00 1.90295e+00 626 2017 12 4.43561e+00 6.83237e-01 595 2018 1 2.37410e+00 7.33524e-01 470 2018 2 2.73216e+00 4.91715e-01 516 2018 3 2.49800e+00 5.17031e-01 1698 2018 4 3.03267e+00 8.10061e-01 479 2018 5 1.07259e+01 3.18291e+00 162 2018 6 1.70690e+01 2.06813e+00 997 2018 7 2.30542e+01 1.02068e+00 2956 2018 8 2.38561e+01 9.52621e-01 2143 2018 9 2.15318e+01 1.04777e+00 2134 2018 10 1.62137e+01 2.82943e+00 977 2018 11 5.08731e+00 5.14921e-01 286 2018 12 4.13464e+00 3.76175e-01 517 2019 1 2.73892e+00 7.97992e-01 106 2019 2 1.54604e+00 4.02441e-01 212 2019 3 2.30445e+00 5.70121e-01 490 2019 4 3.28978e+00 9.98150e-01 493 2019 5 7.35324e+00 1.70950e+00 207 2019 6 1.54504e+01 4.45670e+00 692 2019 7 2.15801e+01 1.45577e+00 2575 2019 8 2.05695e+01 1.08669e+00 3034 2019 9 1.90154e+01 7.54243e-01 2694 2019 10 1.53726e+01 1.48406e+00 2352 2019 11 6.32314e+00 1.06979e+00 779 2019 12 3.85583e+00 5.40497e-01 726 2020 1 2.72918e+00 7.03493e-01 297 2020 2 2.76406e+00 4.75638e-01 853 2020 3 3.59255e+00 6.72900e-01 1619 2020 4 4.54870e+00 6.96833e-01 1822 2020 5 8.86024e+00 3.65986e+00 1700 2020 6 1.73945e+01 2.96728e+00 3989 2020 7 2.32687e+01 1.51894e+00 4075 2020 8 2.19828e+01 1.38529e+00 2369 2020 9 1.77184e+01 1.00084e+00 2827 2020 10 1.32379e+01 2.03115e+00 1186 2020 11 9.31223e+00 2.16267e+00 1677 2020 12 4.95575e+00 6.59548e-01 943 2021 1 3.20087e+00 6.84162e-01 383 2021 2 2.34740e+00 5.76340e-01 1128 2021 3 3.40289e+00 6.71167e-01 2810 2021 4 4.57469e+00 9.58791e-01 1458 2021 5 9.08087e+00 3.10515e+00 2088 2021 6 1.71839e+01 2.05013e+00 1861 2021 7 2.11990e+01 1.47878e+00 2899 2021 8 2.37319e+01 1.59280e+00 3299 2021 9 2.07010e+01 2.08528e+00 3033 2021 10 1.62238e+01 1.76309e+00 1642 2021 11 1.17853e+01 1.57464e+00 1893 2021 12 5.10002e+00 6.58896e-01 1281 2022 1 3.19582e+00 6.77943e-01 686 2022 2 1.89959e+00 5.28409e-01 464 2022 3 3.07622e+00 7.43361e-01 1489 2022 4 4.36370e+00 7.49554e-01 1257 2022 5 1.06897e+01 3.46917e+00 743 2022 6 1.63980e+01 1.82375e+00 2708 2022 7 1.96366e+01 1.46191e+00 3247 2022 8 2.19099e+01 1.83499e+00 2792 2022 9 2.08650e+01 1.57295e+00 2688 2022 10 1.22977e+01 2.68696e+00 1112 2022 11 9.17100e+00 1.83413e+00 1787 2022 12 4.48781e+00 9.72068e-01 734 2023 1 2.73130e+00 4.97508e-01 301 2023 2 3.39953e+00 4.15712e-01 1229 2023 3 2.70397e+00 3.39318e-01 1353 2023 4 4.84901e+00 1.31847e+00 1552 2023 5 1.27929e+01 3.68459e+00 2346 2023 6 1.80163e+01 1.95223e+00 2101 2023 7 2.22638e+01 1.23925e+00 3111 2023 8 2.06564e+01 1.45059e+00 2729 2023 9 2.00886e+01 1.32485e+00 3185 2023 10 1.73240e+01 3.81158e+00 1546 2023 11 7.41953e+00 1.09447e+00 1811 2023 12 4.99572e+00 4.42215e-01 750 2024 1 3.31482e+00 5.58287e-01 274 2024 2 3.12325e+00 6.26655e-01 1800 2024 3 3.72413e+00 5.54917e-01 1576 2024 4 4.16979e+00 2.43476e-01 170