YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 nan nan 0 2000 3 4.02896e+00 1.01143e+00 115 2000 4 6.83894e+00 5.48803e-01 141 2000 5 9.79000e+00 1.48858e+00 181 2000 6 1.70010e+01 9.28538e-01 167 2000 7 1.91497e+01 1.51299e+00 391 2000 8 1.97839e+01 1.05683e+00 211 2000 9 1.83564e+01 2.42719e+00 530 2000 10 1.39519e+01 1.20124e+00 268 2000 11 1.00845e+01 9.97010e-01 319 2000 12 6.08674e+00 1.24002e+00 256 2001 1 1.96685e+00 1.56883e-01 116 2001 2 2.26139e+00 3.85007e-01 166 2001 3 3.67572e+00 5.24733e-01 320 2001 4 6.06714e+00 1.60548e+00 255 2001 5 1.23461e+01 1.00851e+00 228 2001 6 1.73606e+01 2.81412e-01 162 2001 7 1.99646e+01 1.23746e+00 632 2001 8 1.93641e+01 1.85719e+00 386 2001 9 1.78383e+01 1.23608e+00 671 2001 10 1.24137e+01 6.39871e-01 300 2001 11 9.96313e+00 8.33517e-01 374 2001 12 8.29896e+00 1.37889e+00 275 2002 1 3.67116e+00 8.01060e-01 298 2002 2 3.41968e+00 1.42679e-01 124 2002 3 4.76885e+00 4.91411e-01 157 2002 4 8.60092e+00 1.86252e+00 277 2002 5 1.07390e+01 1.14293e+00 251 2002 6 1.57658e+01 1.77711e+00 414 2002 7 2.04652e+01 1.73120e+00 1970 2002 8 2.11847e+01 2.23645e+00 2296 2002 9 1.86756e+01 1.84501e+00 1496 2002 10 1.43139e+01 1.88217e+00 1905 2002 11 9.41756e+00 1.26745e+00 1379 2002 12 5.17460e+00 7.62133e-01 1511 2003 1 2.31867e+00 4.83750e-01 196 2003 2 2.57850e+00 6.77022e-02 30 2003 3 1.13873e+00 1.19577e+00 126 2003 4 5.23327e+00 2.52650e+00 481 2003 5 9.82641e+00 1.66561e+00 599 2003 6 1.55596e+01 2.65993e+00 760 2003 7 1.99303e+01 1.42253e+00 2002 2003 8 2.01945e+01 1.30280e+00 1713 2003 9 1.84385e+01 1.03759e+00 1755 2003 10 1.50120e+01 2.28116e+00 1835 2003 11 9.51728e+00 1.43568e+00 1217 2003 12 5.03813e+00 1.38857e+00 902 2004 1 3.72460e+00 1.42883e+00 287 2004 2 5.90110e-02 6.80106e-01 91 2004 3 2.05750e+00 4.18601e-01 627 2004 4 5.27029e+00 1.74719e+00 909 2004 5 1.13090e+01 2.08913e+00 594 2004 6 1.59901e+01 2.26639e+00 1759 2004 7 1.87460e+01 1.99488e+00 1708 2004 8 1.94102e+01 1.35898e+00 2036 2004 9 1.83668e+01 2.32612e+00 1617 2004 10 1.42945e+01 1.69273e+00 1426 2004 11 1.02378e+01 1.26891e+00 1945 2004 12 6.16265e+00 1.37766e+00 1115 2005 1 2.48373e+00 1.34227e+00 255 2005 2 1.66771e+00 4.81476e-01 192 2005 3 2.02564e+00 7.67069e-01 693 2005 4 7.06089e+00 1.39330e+00 972 2005 5 9.74447e+00 1.37442e+00 545 2005 6 1.56852e+01 2.84892e+00 536 2005 7 2.08425e+01 1.93350e+00 2083 2005 8 2.05730e+01 2.22731e+00 2313 2005 9 1.92409e+01 1.46330e+00 2896 2005 10 1.34760e+01 3.24051e+00 1127 2005 11 9.77185e+00 1.41490e+00 1128 2005 12 5.52521e+00 1.77674e+00 894 2006 1 3.90785e+00 3.90863e-01 817 2006 2 2.68924e+00 1.11166e+00 383 2006 3 1.75707e+00 1.07178e+00 606 2006 4 6.47057e+00 1.37024e+00 1191 2006 5 1.13374e+01 2.14494e+00 1109 2006 6 1.70071e+01 2.34434e+00 1086 2006 7 2.04183e+01 1.40925e+00 2010 2006 8 2.07646e+01 1.91227e+00 2629 2006 9 1.75472e+01 9.84059e-01 2398 2006 10 1.38387e+01 1.89179e+00 1738 2006 11 1.03356e+01 1.55219e+00 1027 2006 12 7.66419e+00 1.56109e+00 1428 2007 1 5.18064e+00 1.41148e+00 605 2007 2 1.12508e+00 3.58129e-01 65 2007 3 2.56140e+00 1.22376e+00 719 2007 4 4.13610e+00 1.32735e+00 779 2007 5 1.01458e+01 2.84590e+00 1460 2007 6 1.61437e+01 2.69501e+00 1759 2007 7 1.98970e+01 1.54446e+00 1687 2007 8 2.01241e+01 1.26833e+00 2338 2007 9 1.85453e+01 9.49985e-01 1852 2007 10 1.51867e+01 2.17775e+00 1681 2007 11 9.86198e+00 2.19975e+00 860 2007 12 4.84835e+00 1.38139e+00 783 2008 1 3.06466e+00 1.04250e+00 697 2008 2 2.55677e+00 5.63085e-01 429 2008 3 3.71338e+00 4.93887e-01 1101 2008 4 8.15748e+00 2.44439e+00 1154 2008 5 1.04239e+01 2.07892e+00 1253 2008 6 1.76657e+01 2.61230e+00 1553 2008 7 2.10031e+01 1.38359e+00 1651 2008 8 2.01660e+01 1.41668e+00 3091 2008 9 1.90404e+01 2.14534e+00 1774 2008 10 1.43142e+01 2.01680e+00 1808 2008 11 9.39991e+00 2.33892e+00 1238 2008 12 5.56809e+00 1.47122e+00 897 2009 1 2.80063e+00 4.88794e-01 286 2009 2 8.27125e-01 2.41279e-01 240 2009 3 2.34027e+00 1.11097e+00 866 2009 4 5.56254e+00 1.71753e+00 1075 2009 5 1.07885e+01 1.79820e+00 626 2009 6 1.45997e+01 2.45235e+00 940 2009 7 1.86633e+01 1.60039e+00 1759 2009 8 2.20283e+01 1.27034e+00 2095 2009 9 1.73753e+01 9.04277e-01 1961 2009 10 1.40133e+01 1.83561e+00 1428 2009 11 1.07193e+01 8.70866e-01 993 2009 12 7.05695e+00 1.98001e+00 958 2010 1 2.24563e+00 5.47914e-01 511 2010 2 1.10360e+00 2.81147e-01 186 2010 3 3.74523e+00 1.61333e+00 751 2010 4 8.39315e+00 1.41570e+00 1302 2010 5 1.40216e+01 2.20330e+00 1240 2010 6 1.85725e+01 2.14077e+00 1750 2010 7 2.25159e+01 1.54657e+00 2970 2010 8 2.12116e+01 1.80088e+00 1927 2010 9 1.81945e+01 1.88265e+00 1860 2010 10 1.43488e+01 1.55120e+00 2445 2010 11 1.04265e+01 1.01040e+00 985 2010 12 4.80650e+00 1.05975e+00 696 2011 1 3.16225e+00 8.35870e-01 492 2011 2 1.47503e+00 5.40408e-01 376 2011 3 3.53262e+00 9.89114e-01 953 2011 4 5.28387e+00 1.86032e+00 767 2011 5 1.13125e+01 2.55596e+00 861 2011 6 1.68628e+01 1.65394e+00 1658 2011 7 2.11109e+01 1.57960e+00 2586 2011 8 2.04115e+01 1.43606e+00 1958 2011 9 1.75269e+01 1.37827e+00 1616 2011 10 1.53136e+01 1.90281e+00 1904 2011 11 1.08016e+01 1.47531e+00 1254 2011 12 7.65516e+00 1.50078e+00 1281 2012 1 4.63136e+00 8.37045e-01 815 2012 2 3.53788e+00 8.57887e-01 1129 2012 3 4.75553e+00 1.09178e+00 310 2012 4 8.32681e+00 2.03449e+00 1855 2012 5 1.32632e+01 2.19589e+00 872 2012 6 1.70237e+01 3.31142e+00 1245 2012 7 2.21054e+01 1.51829e+00 2195 2012 8 2.23104e+01 1.66324e+00 2296 2012 9 1.81623e+01 1.76727e+00 2140 2012 10 1.46689e+01 1.12038e+00 1876 2012 11 9.54686e+00 1.65032e+00 1159 2012 12 6.86217e+00 9.09731e-01 935 2013 1 3.62775e+00 5.42104e-01 645 2013 2 2.49236e+00 6.04305e-01 407 2013 3 3.61646e+00 7.09575e-01 685 2013 4 6.55907e+00 1.94998e+00 1461 2013 5 1.24348e+01 2.70440e+00 1313 2013 6 1.61511e+01 1.97355e+00 1227 2013 7 2.17017e+01 2.24577e+00 1812 2013 8 2.13256e+01 1.52067e+00 2091 2013 9 1.79420e+01 1.80676e+00 1989 2013 10 1.48485e+01 1.39072e+00 1900 2013 11 9.64151e+00 1.61052e+00 892 2013 12 5.37089e+00 1.66466e+00 627 2014 1 2.67508e+00 9.62793e-01 496 2014 2 6.41148e-01 3.11272e-01 209 2014 3 2.24718e+00 5.46403e-01 411 2014 4 5.79072e+00 1.48433e+00 1050 2014 5 1.21418e+01 2.01666e+00 1091 2014 6 1.71219e+01 2.37713e+00 2120 2014 7 1.97284e+01 1.73821e+00 1812 2014 8 1.95545e+01 1.23122e+00 2212 2014 9 1.94213e+01 2.11999e+00 2180 2014 10 1.52932e+01 1.58776e+00 1419 2014 11 1.00503e+01 1.53142e+00 929 2014 12 6.54892e+00 1.55944e+00 623 2015 1 3.03062e+00 1.36168e+00 752 2015 2 1.83425e+00 5.44809e-01 193 2015 3 7.32847e-01 1.25421e+00 137 2015 4 6.67393e+00 1.20416e+00 758 2015 5 1.26466e+01 2.64223e+00 778 2015 6 1.62932e+01 2.96311e+00 910 2015 7 2.09173e+01 2.45500e+00 2279 2015 8 2.23491e+01 1.93734e+00 3047 2015 9 1.98095e+01 1.82464e+00 3011 2015 10 1.43741e+01 1.29621e+00 1787 2015 11 1.14762e+01 1.66932e+00 1414 2015 12 8.68621e+00 4.29309e-01 620 2016 1 5.93666e+00 1.95461e+00 1127 2016 2 3.52338e+00 6.62787e-01 618 2016 3 5.28230e+00 9.44847e-01 909 2016 4 6.96163e+00 1.36007e+00 1552 2016 5 1.11912e+01 2.05683e+00 1049 2016 6 1.76884e+01 1.81527e+00 2044 2016 7 2.12384e+01 2.02982e+00 2542 2016 8 2.20101e+01 1.78302e+00 3376 2016 9 1.95582e+01 1.48514e+00 1642 2016 10 1.52694e+01 7.66698e-01 1340 2016 11 1.14142e+01 2.33158e+00 941 2016 12 6.96386e+00 1.79609e+00 914 2017 1 4.29070e+00 8.16849e-01 725 2017 2 3.05387e+00 7.47720e-01 741 2017 3 3.56552e+00 8.81196e-01 764 2017 4 6.06567e+00 1.84733e+00 411 2017 5 1.13354e+01 1.75917e+00 625 2017 6 1.63199e+01 2.62880e+00 946 2017 7 2.01296e+01 2.74501e+00 1891 2017 8 2.07628e+01 2.02643e+00 2605 2017 9 1.78297e+01 1.42829e+00 1546 2017 10 1.57697e+01 1.18754e+00 2180 2017 11 1.02877e+01 1.91029e+00 1637 2017 12 5.14393e+00 1.37905e+00 577 2018 1 1.33654e+00 8.05844e-01 244 2018 2 2.05514e+00 1.27019e+00 384 2018 3 3.32863e+00 5.03089e-01 777 2018 4 5.04315e+00 1.56740e+00 1028 2018 5 1.19939e+01 1.49501e+00 496 2018 6 1.73167e+01 2.59355e+00 1211 2018 7 2.10102e+01 1.65547e+00 2156 2018 8 2.15982e+01 1.43493e+00 2434 2018 9 2.00146e+01 1.93755e+00 2058 2018 10 1.57383e+01 1.87673e+00 1529 2018 11 1.10398e+01 2.18578e+00 1189 2018 12 4.83594e+00 1.09893e+00 1054 2019 1 3.39251e+00 8.47224e-01 652 2019 2 1.47958e+00 7.94232e-01 395 2019 3 3.13158e+00 8.75379e-01 1016 2019 4 6.27281e+00 2.12754e+00 951 2019 5 1.07910e+01 2.33081e+00 900 2019 6 1.58054e+01 1.71599e+00 991 2019 7 2.20829e+01 1.89025e+00 3018 2019 8 2.18405e+01 1.97118e+00 2179 2019 9 1.81650e+01 1.28175e+00 3371 2019 10 1.40629e+01 7.07085e-01 1321 2019 11 1.12540e+01 2.10172e+00 1679 2019 12 4.73342e+00 1.39955e+00 1256 2020 1 3.97960e+00 5.93009e-01 1472 2020 2 3.71139e+00 5.22690e-01 1570 2020 3 5.13950e+00 1.01102e+00 1640 2020 4 6.84114e+00 1.02505e+00 1593 2020 5 1.13145e+01 2.11297e+00 2162 2020 6 1.72367e+01 2.56160e+00 2279 2020 7 2.15049e+01 2.71176e+00 1746 2020 8 2.24628e+01 1.73050e+00 1774 2020 9 1.76655e+01 2.35449e+00 2564 2020 10 1.61814e+01 1.62567e+00 2588 2020 11 1.14138e+01 1.42670e+00 2000 2020 12 6.97885e+00 1.52973e+00 1724 2021 1 4.33820e+00 8.20760e-01 1398 2021 2 2.36924e+00 4.70234e-01 1078 2021 3 3.99664e+00 2.10103e+00 2032 2021 4 7.73894e+00 1.75129e+00 1884 2021 5 1.29421e+01 1.97012e+00 2137 2021 6 1.88848e+01 2.60587e+00 2002 2021 7 2.17646e+01 1.63357e+00 1902 2021 8 2.26643e+01 1.78077e+00 1686 2021 9 1.98857e+01 8.82790e-01 2537 2021 10 1.71264e+01 9.57005e-01 1648 2021 11 1.18537e+01 1.82124e+00 2247 2021 12 7.11188e+00 8.48670e-01 1330 2022 1 3.49546e+00 1.67991e+00 571 2022 2 2.87137e+00 4.69996e-01 1323 2022 3 4.30573e+00 1.41004e+00 1637 2022 4 8.64837e+00 1.25052e+00 1150 2022 5 1.34678e+01 2.66048e+00 1258 2022 6 1.84442e+01 1.66275e+00 2747 2022 7 2.23637e+01 1.82517e+00 2722 2022 8 2.15918e+01 1.90014e+00 2578 2022 9 2.00364e+01 1.82362e+00 2372 2022 10 1.53471e+01 7.33263e-01 2232 2022 11 1.25807e+01 2.05279e+00 2565 2022 12 7.34811e+00 1.54663e+00 1603 2023 1 4.76886e+00 8.09904e-01 1270 2023 2 3.88833e+00 8.22624e-01 1016 2023 3 5.13893e+00 1.02073e+00 2272 2023 4 9.25701e+00 2.45677e+00 1351 2023 5 1.26352e+01 2.00886e+00 3115 2023 6 1.74630e+01 2.97522e+00 1960 2023 7 2.27222e+01 1.51585e+00 2330 2023 8 2.04661e+01 1.43426e+00 2044 2023 9 1.95305e+01 2.03446e+00 2402 2023 10 1.64609e+01 1.37296e+00 2146 2023 11 1.08785e+01 1.58151e+00 2153 2023 12 7.21979e+00 8.34732e-01 1692 2024 1 5.20313e+00 1.20754e+00 1807 2024 2 3.06756e+00 8.12337e-01 1707 2024 3 5.33069e+00 8.88819e-01 1300 2024 4 6.30711e+00 7.22128e-02 64