YEAR MONTH MEAN STDEV COUNT 2000 1 nan nan 0 2000 2 nan nan 0 2000 3 3.78954e+00 7.55824e-01 384 2000 4 5.94844e+00 8.38404e-02 128 2000 5 7.51123e+00 8.23448e-01 151 2000 6 1.40771e+01 5.36676e-01 26 2000 7 1.82836e+01 1.83985e+00 411 2000 8 1.95594e+01 8.55991e-01 274 2000 9 1.81534e+01 4.11947e-01 288 2000 10 1.40363e+01 9.92495e-01 385 2000 11 1.01531e+01 6.70246e-01 524 2000 12 6.29508e+00 1.76937e+00 485 2001 1 3.98919e+00 4.25783e-01 424 2001 2 3.34144e+00 3.89342e-01 344 2001 3 3.13193e+00 7.18839e-01 319 2001 4 5.03612e+00 1.27770e+00 329 2001 5 1.14706e+01 6.75886e-01 325 2001 6 1.58219e+01 1.08909e+00 143 2001 7 1.76478e+01 1.50283e+00 697 2001 8 1.90942e+01 1.14892e+00 358 2001 9 1.64376e+01 1.11727e+00 743 2001 10 1.18872e+01 1.18538e+00 368 2001 11 9.90864e+00 7.01270e-01 487 2001 12 8.26149e+00 1.12372e+00 456 2002 1 5.36947e+00 8.86271e-01 483 2002 2 3.83140e+00 3.92868e-01 136 2002 3 4.34742e+00 5.23943e-01 298 2002 4 6.85764e+00 1.61616e+00 416 2002 5 9.85229e+00 7.99414e-01 310 2002 6 1.38652e+01 1.33417e+00 274 2002 7 1.94387e+01 1.24175e+00 2126 2002 8 1.96491e+01 1.41585e+00 2249 2002 9 1.75995e+01 1.47962e+00 1616 2002 10 1.42711e+01 1.70996e+00 1587 2002 11 1.03496e+01 1.01877e+00 1635 2002 12 6.26388e+00 1.11387e+00 2030 2003 1 3.22600e+00 1.02103e+00 663 2003 2 1.85290e+00 7.12152e-01 408 2003 3 2.05607e+00 9.75297e-01 416 2003 4 3.94769e+00 1.67750e+00 831 2003 5 8.99667e+00 2.30766e+00 744 2003 6 1.42566e+01 2.49050e+00 764 2003 7 1.81034e+01 1.56215e+00 1540 2003 8 1.94825e+01 1.20052e+00 1578 2003 9 1.79622e+01 1.36731e+00 2612 2003 10 1.47697e+01 2.32363e+00 1881 2003 11 9.60205e+00 1.32238e+00 1414 2003 12 6.12647e+00 1.14896e+00 1603 2004 1 3.53095e+00 1.36005e+00 572 2004 2 1.44695e+00 2.93546e-01 718 2004 3 2.04079e+00 4.86311e-01 598 2004 4 4.55065e+00 1.48690e+00 838 2004 5 9.57098e+00 1.50829e+00 665 2004 6 1.39890e+01 1.67700e+00 1426 2004 7 1.73608e+01 1.75696e+00 1318 2004 8 1.82064e+01 1.95991e+00 1345 2004 9 1.66230e+01 1.44098e+00 1731 2004 10 1.39278e+01 1.72097e+00 1666 2004 11 1.05223e+01 1.25624e+00 1973 2004 12 6.90318e+00 1.60656e+00 1309 2005 1 4.03728e+00 1.17616e+00 370 2005 2 2.24106e+00 3.23511e-01 583 2005 3 1.93895e+00 6.60598e-01 1243 2005 4 6.20253e+00 1.05972e+00 1502 2005 5 7.68096e+00 1.62550e+00 596 2005 6 1.28406e+01 2.56035e+00 433 2005 7 1.84657e+01 1.53612e+00 1307 2005 8 1.89163e+01 1.58895e+00 2033 2005 9 1.75015e+01 1.54123e+00 2102 2005 10 1.29361e+01 1.78050e+00 991 2005 11 1.01830e+01 8.71607e-01 1478 2005 12 6.19933e+00 1.52560e+00 1694 2006 1 4.08404e+00 7.84470e-01 1188 2006 2 3.52359e+00 7.46115e-01 749 2006 3 2.97643e+00 9.75057e-01 710 2006 4 6.32741e+00 1.25956e+00 1413 2006 5 9.67365e+00 1.98815e+00 917 2006 6 1.52136e+01 2.06256e+00 511 2006 7 1.77081e+01 2.06514e+00 926 2006 8 1.92386e+01 1.63239e+00 2492 2006 9 1.73182e+01 4.47243e-01 2061 2006 10 1.32772e+01 1.62514e+00 2045 2006 11 1.04304e+01 1.82812e+00 1109 2006 12 8.45768e+00 1.51154e+00 2019 2007 1 5.82447e+00 1.12403e+00 968 2007 2 2.23312e+00 8.56500e-01 840 2007 3 3.10118e+00 1.32085e+00 1240 2007 4 4.78920e+00 8.77952e-01 943 2007 5 1.02695e+01 2.80925e+00 1490 2007 6 1.57843e+01 2.16111e+00 1381 2007 7 1.84531e+01 1.40913e+00 1775 2007 8 1.91067e+01 1.38068e+00 1892 2007 9 1.74699e+01 1.38295e+00 1742 2007 10 1.39532e+01 1.55612e+00 1967 2007 11 1.02955e+01 1.37270e+00 1244 2007 12 6.22378e+00 1.33487e+00 1111 2008 1 4.03512e+00 7.77451e-01 1096 2008 2 2.97641e+00 4.48820e-01 810 2008 3 3.34014e+00 4.48674e-01 1293 2008 4 6.79310e+00 1.65614e+00 1314 2008 5 1.03956e+01 1.93562e+00 1476 2008 6 1.64974e+01 1.65266e+00 1085 2008 7 1.81889e+01 1.59079e+00 1487 2008 8 1.97080e+01 1.04453e+00 3342 2008 9 1.76046e+01 1.20887e+00 1763 2008 10 1.39449e+01 1.44292e+00 1843 2008 11 1.00012e+01 1.59471e+00 1566 2008 12 7.06245e+00 1.22386e+00 1269 2009 1 3.38895e+00 7.77320e-01 1292 2009 2 1.88741e+00 6.76427e-01 808 2009 3 2.67599e+00 9.74066e-01 861 2009 4 5.32262e+00 1.48921e+00 1350 2009 5 1.00517e+01 1.15808e+00 532 2009 6 1.39665e+01 2.03917e+00 700 2009 7 1.70374e+01 1.25648e+00 1802 2009 8 2.02504e+01 1.80177e+00 1836 2009 9 1.70322e+01 9.79110e-01 2030 2009 10 1.39614e+01 1.49446e+00 1758 2009 11 1.09144e+01 9.93950e-01 1287 2009 12 7.87365e+00 1.63146e+00 1761 2010 1 4.08180e+00 8.93940e-01 1264 2010 2 2.71857e+00 8.47790e-01 775 2010 3 3.99444e+00 7.16094e-01 1000 2010 4 7.98446e+00 9.07301e-01 1125 2010 5 1.20980e+01 2.35526e+00 1561 2010 6 1.63894e+01 2.32903e+00 1351 2010 7 2.01911e+01 1.94027e+00 2440 2010 8 1.92546e+01 1.59340e+00 2190 2010 9 1.75844e+01 1.18756e+00 2024 2010 10 1.39070e+01 1.37413e+00 1994 2010 11 1.02779e+01 1.11047e+00 1241 2010 12 6.65404e+00 1.42437e+00 2003 2011 1 4.35325e+00 9.82822e-01 1232 2011 2 3.05049e+00 7.51545e-01 1196 2011 3 3.39500e+00 6.53257e-01 1520 2011 4 4.94145e+00 1.09107e+00 833 2011 5 9.70442e+00 1.84352e+00 850 2011 6 1.53039e+01 2.38503e+00 1315 2011 7 1.98534e+01 1.53234e+00 2166 2011 8 1.88692e+01 1.21149e+00 1804 2011 9 1.63973e+01 1.23338e+00 2050 2011 10 1.52202e+01 1.16290e+00 1579 2011 11 1.13030e+01 1.12310e+00 1223 2011 12 8.45860e+00 1.50278e+00 1554 2012 1 6.05983e+00 8.78779e-01 1661 2012 2 4.23235e+00 8.59141e-01 1514 2012 3 5.10819e+00 1.14188e+00 470 2012 4 7.87644e+00 1.27630e+00 1969 2012 5 1.20575e+01 2.44630e+00 839 2012 6 1.64316e+01 2.42084e+00 1122 2012 7 2.05175e+01 1.16143e+00 2225 2012 8 2.07154e+01 1.18089e+00 2183 2012 9 1.73347e+01 1.77653e+00 2464 2012 10 1.39357e+01 7.60875e-01 2044 2012 11 1.05752e+01 1.01537e+00 1685 2012 12 8.04010e+00 7.09872e-01 1132 2013 1 5.82562e+00 8.23851e-01 1508 2013 2 3.48185e+00 4.87731e-01 1115 2013 3 3.91214e+00 5.95645e-01 1011 2013 4 6.39173e+00 2.34241e+00 1729 2013 5 1.12489e+01 1.78933e+00 1346 2013 6 1.58105e+01 2.56263e+00 1305 2013 7 2.16555e+01 1.72851e+00 1682 2013 8 1.97934e+01 1.42212e+00 1946 2013 9 1.63827e+01 1.13068e+00 1845 2013 10 1.51834e+01 1.30403e+00 2257 2013 11 1.04587e+01 1.32790e+00 1529 2013 12 6.00117e+00 1.46888e+00 1308 2014 1 4.20687e+00 8.47964e-01 995 2014 2 2.13850e+00 5.89560e-01 765 2014 3 2.54041e+00 6.28724e-01 751 2014 4 5.09096e+00 7.81844e-01 1349 2014 5 1.05443e+01 1.92146e+00 1265 2014 6 1.57390e+01 1.83688e+00 1964 2014 7 1.74251e+01 1.71989e+00 1257 2014 8 1.86347e+01 1.23645e+00 2454 2014 9 1.81043e+01 1.53938e+00 2218 2014 10 1.49136e+01 1.24960e+00 1472 2014 11 1.07097e+01 1.10725e+00 1415 2014 12 7.30369e+00 1.21055e+00 765 2015 1 4.96248e+00 1.01403e+00 1367 2015 2 2.12791e+00 6.43102e-01 386 2015 3 1.82227e+00 6.71568e-01 860 2015 4 5.03832e+00 1.81437e+00 1098 2015 5 1.07994e+01 1.33875e+00 531 2015 6 1.52789e+01 2.42572e+00 801 2015 7 1.97386e+01 2.12085e+00 2162 2015 8 2.04961e+01 1.21720e+00 3006 2015 9 1.89506e+01 1.40342e+00 2196 2015 10 1.40230e+01 1.42038e+00 2051 2015 11 1.18129e+01 1.38985e+00 1549 2015 12 9.34812e+00 1.25861e+00 870 2016 1 6.84795e+00 1.38089e+00 1606 2016 2 4.31311e+00 8.78242e-01 917 2016 3 5.12253e+00 8.91845e-01 936 2016 4 6.53205e+00 1.33712e+00 2013 2016 5 1.02569e+01 1.59043e+00 851 2016 6 1.55384e+01 2.07063e+00 1830 2016 7 1.93704e+01 2.31133e+00 1972 2016 8 2.09421e+01 1.34955e+00 3057 2016 9 1.94100e+01 7.64544e-01 1739 2016 10 1.55773e+01 1.20341e+00 1674 2016 11 1.16046e+01 1.90971e+00 1522 2016 12 7.87825e+00 1.55917e+00 1814 2017 1 4.79649e+00 1.04191e+00 1465 2017 2 4.54429e+00 7.49820e-01 1001 2017 3 4.01064e+00 5.20373e-01 1438 2017 4 6.36386e+00 2.01355e+00 792 2017 5 1.05704e+01 2.10081e+00 726 2017 6 1.30944e+01 1.91033e+00 733 2017 7 1.81132e+01 1.96247e+00 1608 2017 8 1.91530e+01 1.00341e+00 2927 2017 9 1.68531e+01 1.38836e+00 1390 2017 10 1.54649e+01 1.52704e+00 1970 2017 11 1.00110e+01 1.52871e+00 2384 2017 12 6.82838e+00 1.38377e+00 1543 2018 1 2.37559e+00 1.08543e+00 743 2018 2 2.44232e+00 8.22792e-01 626 2018 3 3.90501e+00 3.37523e-01 893 2018 4 4.92711e+00 1.48213e+00 1141 2018 5 1.17320e+01 2.50547e+00 447 2018 6 1.50629e+01 1.88781e+00 924 2018 7 1.88302e+01 1.15958e+00 1420 2018 8 2.05716e+01 1.71663e+00 1956 2018 9 1.98050e+01 2.07913e+00 1790 2018 10 1.47295e+01 1.58972e+00 1846 2018 11 1.10843e+01 2.10099e+00 1478 2018 12 6.09646e+00 1.08023e+00 1689 2019 1 4.17567e+00 1.35285e+00 1422 2019 2 2.83635e+00 5.13054e-01 1257 2019 3 3.23631e+00 5.06267e-01 1216 2019 4 5.55454e+00 1.58036e+00 1120 2019 5 1.06379e+01 1.12562e+00 669 2019 6 1.49199e+01 1.57095e+00 901 2019 7 2.07778e+01 1.59178e+00 3060 2019 8 1.98714e+01 1.51051e+00 2560 2019 9 1.77888e+01 8.32530e-01 3267 2019 10 1.40196e+01 8.80796e-01 1728 2019 11 1.12427e+01 1.62367e+00 1981 2019 12 6.48646e+00 9.64942e-01 1710 2020 1 5.00008e+00 5.08031e-01 2004 2020 2 4.41332e+00 4.48261e-01 1682 2020 3 4.75762e+00 9.61457e-01 1826 2020 4 6.06524e+00 7.16212e-01 1529 2020 5 9.87279e+00 2.07156e+00 2357 2020 6 1.60696e+01 1.66901e+00 1896 2020 7 2.03868e+01 1.70988e+00 1776 2020 8 1.94981e+01 1.50948e+00 1229 2020 9 1.78680e+01 1.85638e+00 2521 2020 10 1.52137e+01 1.04919e+00 2803 2020 11 1.16106e+01 1.11727e+00 1797 2020 12 8.07428e+00 1.38681e+00 2179 2021 1 5.34962e+00 6.84636e-01 1605 2021 2 3.57218e+00 5.62706e-01 1585 2021 3 3.89255e+00 1.08387e+00 2509 2021 4 7.05672e+00 1.37055e+00 1876 2021 5 1.10829e+01 1.71686e+00 2197 2021 6 1.67066e+01 2.08448e+00 1998 2021 7 2.00188e+01 1.35333e+00 1886 2021 8 2.13362e+01 1.33140e+00 1737 2021 9 1.92397e+01 8.72900e-01 2230 2021 10 1.63244e+01 1.00882e+00 1838 2021 11 1.23217e+01 1.42287e+00 2584 2021 12 8.92716e+00 8.99818e-01 1388 2022 1 5.61524e+00 9.95079e-01 1845 2022 2 4.05052e+00 4.75465e-01 1796 2022 3 4.64434e+00 8.08389e-01 1772 2022 4 7.20203e+00 6.97640e-01 1173 2022 5 1.10158e+01 2.74193e+00 1344 2022 6 1.63317e+01 1.58670e+00 2709 2022 7 2.01275e+01 1.53644e+00 2541 2022 8 2.02939e+01 1.28413e+00 2391 2022 9 1.88270e+01 1.81218e+00 2642 2022 10 1.52188e+01 6.93326e-01 2199 2022 11 1.28331e+01 1.55644e+00 3415 2022 12 8.33326e+00 1.43482e+00 2147 2023 1 5.58078e+00 7.72007e-01 1084 2023 2 4.50427e+00 6.27196e-01 1381 2023 3 4.83433e+00 8.32944e-01 2249 2023 4 7.34712e+00 1.34339e+00 1808 2023 5 1.20675e+01 1.85828e+00 3824 2023 6 1.56953e+01 1.99946e+00 1619 2023 7 1.94079e+01 1.38173e+00 2122 2023 8 1.81676e+01 9.44988e-01 2288 2023 9 1.88066e+01 1.26437e+00 2157 2023 10 1.62614e+01 1.17290e+00 2495 2023 11 1.16788e+01 1.36339e+00 2750 2023 12 8.34026e+00 5.84604e-01 2013 2024 1 6.08666e+00 9.98280e-01 2111 2024 2 3.78775e+00 8.99337e-01 2134 2024 3 4.86716e+00 5.09837e-01 1235 2024 4 5.50203e+00 4.73577e-02 64