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 1.86010e+00 8.63277e-01 121 2002 8 2.07925e+00 7.45961e-01 417 2002 9 2.53530e+00 6.11392e-01 357 2002 10 2.36750e+00 1.08670e+00 755 2002 11 2.63210e+00 1.08536e+00 786 2002 12 2.09818e+00 1.07074e+00 620 2003 1 2.94170e+00 8.07312e-01 939 2003 2 2.22007e+00 7.43931e-01 512 2003 3 1.34075e+01 8.48030e+00 216 2003 4 1.47109e+01 9.45860e+00 159 2003 5 4.97510e+00 3.16618e+00 196 2003 6 4.74451e+00 2.33703e+00 204 2003 7 9.39305e+00 5.30822e+00 174 2003 8 8.06028e+00 6.98728e+00 312 2003 9 4.87638e+00 5.07105e+00 490 2003 10 3.96903e+00 2.01732e+00 889 2003 11 3.09617e+00 1.45306e+00 1060 2003 12 2.64629e+00 1.53372e+00 896 2004 1 2.44160e+00 1.35445e+00 734 2004 2 2.24871e+00 7.37976e-01 384 2004 3 4.55538e+00 2.77824e+00 773 2004 4 2.22858e+00 8.14461e-01 579 2004 5 1.92019e+00 9.30869e-01 566 2004 6 1.94918e+00 1.10025e+00 399 2004 7 3.12122e+00 2.77560e+00 448 2004 8 2.62639e+00 1.20017e+00 470 2004 9 7.45420e+00 6.37480e+00 288 2004 10 1.08985e+01 7.27614e+00 178 2004 11 1.86110e+01 1.08230e+01 191 2004 12 1.13675e+01 7.66311e+00 434 2005 1 6.43378e+00 4.91560e+00 729 2005 2 5.79091e+00 2.29237e+00 612 2005 3 4.15362e+00 2.35527e+00 453 2005 4 1.07305e+01 8.03576e+00 513 2005 5 9.05728e+00 8.01659e+00 225 2005 6 7.45018e+00 6.19172e+00 448 2005 7 1.82384e+01 1.15327e+01 229 2005 8 1.29314e+01 8.06249e+00 355 2005 9 5.67971e+00 1.84223e+00 375 2005 10 3.63583e+00 2.63616e+00 927 2005 11 1.98845e+00 6.14133e-01 1020 2005 12 2.49005e+00 1.52632e+00 1052 2006 1 6.44331e+00 4.70007e+00 549 2006 2 8.43945e+00 4.67457e+00 570 2006 3 6.77431e+00 4.15934e+00 1046 2006 4 3.29079e+00 1.20598e+00 282 2006 5 1.57535e+00 8.99194e-01 485 2006 6 1.85555e+00 6.56929e-01 387 2006 7 2.69687e+00 1.04448e+00 270 2006 8 2.44436e+00 6.10792e-01 320 2006 9 2.59737e+00 5.92397e-01 576 2006 10 2.12696e+00 1.31809e+00 885 2006 11 1.76149e+00 9.11700e-01 879 2006 12 1.07707e+00 1.28321e+00 452 2007 1 1.28331e+00 7.36380e-01 384 2007 2 1.16567e+00 8.46387e-01 704 2007 3 1.35412e+00 7.28633e-01 1195 2007 4 1.54862e+00 7.68905e-01 480 2007 5 1.11311e+00 4.14062e-01 131 2007 6 1.56438e+00 6.67174e-01 388 2007 7 1.75377e+00 1.00846e+00 448 2007 8 2.72151e+00 1.04175e+00 537 2007 9 3.57951e+00 1.84109e+00 420 2007 10 1.98641e+00 8.94129e-01 669 2007 11 1.38424e+00 8.28728e-01 1194 2007 12 1.47542e+00 1.57684e+00 766 2008 1 1.51324e+00 1.31834e+00 634 2008 2 1.89427e+00 8.18240e-01 864 2008 3 7.90915e+00 7.01780e+00 751 2008 4 4.90325e+00 3.64082e+00 562 2008 5 4.39141e+00 1.82632e+00 512 2008 6 3.75785e+00 1.26142e+00 367 2008 7 2.74043e+00 2.26724e+00 509 2008 8 2.76405e+00 9.14740e-01 256 2008 9 9.89697e+00 1.08101e+01 459 2008 10 3.90191e+00 1.43303e+00 894 2008 11 1.79282e+00 9.91432e-01 1013 2008 12 4.41701e+00 2.28023e+00 960 2009 1 3.24001e+00 9.62747e-01 640 2009 2 2.43145e+00 1.15727e+00 1024 2009 3 1.69868e+00 1.00955e+00 956 2009 4 5.22489e+00 5.06721e+00 522 2009 5 1.00194e+01 9.43236e+00 285 2009 6 2.67481e+00 5.35453e-01 97 2009 7 5.34453e+00 3.91880e+00 192 2009 8 5.23259e+00 3.23836e+00 527 2009 9 4.78458e+00 2.47324e+00 740 2009 10 2.32731e+00 9.69360e-01 811 2009 11 1.81114e+00 1.15112e+00 643 2009 12 1.83939e+00 1.06907e+00 192 2010 1 3.34526e+00 2.20108e+00 927 2010 2 6.28004e+00 2.40443e+00 708 2010 3 9.10103e+00 5.83626e+00 935 2010 4 1.11651e+01 1.02712e+01 267 2010 5 4.57644e+00 4.69361e+00 511 2010 6 3.04276e+00 1.23213e+00 558 2010 7 5.34433e+00 1.91737e+00 345 2010 8 3.25933e+00 7.20482e-01 162 2010 9 3.32901e+00 1.53082e+00 484 2010 10 2.06733e+00 8.52234e-01 1408 2010 11 1.52515e+00 8.04082e-01 1071 2010 12 1.76768e+00 1.20367e+00 909 2011 1 1.40189e+00 8.80527e-01 701 2011 2 1.18615e+00 6.24611e-01 768 2011 3 1.36374e+00 9.17352e-01 815 2011 4 1.49979e+00 8.99977e-01 896 2011 5 1.45637e+00 7.12191e-01 739 2011 6 1.57496e+00 5.02510e-01 256 2011 7 2.11096e+00 1.05866e+00 363 2011 8 1.66609e+00 6.52768e-01 616 2011 9 1.87388e+00 6.80657e-01 740 2011 10 1.87678e+00 2.07865e+00 975 2011 11 1.03663e+00 5.48406e-01 1150 2011 12 1.13265e+00 6.26159e-01 1088 2012 1 1.20605e+00 7.58835e-01 1009 2012 2 1.34615e+00 6.61629e-01 306 2012 3 1.51930e+00 9.45621e-01 879 2012 4 1.14098e+00 5.17217e-01 857 2012 5 1.43916e+00 6.77682e-01 347 2012 6 2.73057e+00 6.20668e-01 69 2012 7 4.91399e+00 1.69844e+00 215 2012 8 1.52691e+01 8.68150e+00 331 2012 9 1.29364e+01 1.02061e+01 382 2012 10 6.71892e+00 2.76309e+00 615 2012 11 3.71638e+00 2.18330e+00 1027 2012 12 4.70810e+00 2.75281e+00 637 2013 1 2.44153e+00 1.75166e+00 753 2013 2 2.21983e+00 9.47874e-01 630 2013 3 1.88555e+00 8.08429e-01 640 2013 4 9.76003e+00 6.94420e+00 523 2013 5 4.17555e+00 4.97069e+00 430 2013 6 1.00259e+01 9.10502e+00 558 2013 7 2.14547e+01 8.42395e+00 63 2013 8 3.10816e+01 1.11677e+01 121 2013 9 1.72636e+01 1.08413e+01 597 2013 10 5.96689e+00 2.91804e+00 942 2013 11 4.07111e+00 2.09602e+00 405 2013 12 2.65093e+00 1.73745e+00 703 2014 1 2.12284e+00 6.73772e-01 448 2014 2 4.43394e+00 3.83835e+00 632 2014 3 6.20278e+00 3.35007e+00 574 2014 4 1.55847e+01 1.24871e+01 292 2014 5 2.22770e+01 7.37048e+00 125 2014 6 1.58781e+01 1.14140e+01 258 2014 7 8.19746e+00 4.38980e+00 632 2014 8 3.44507e+00 1.06558e+00 333 2014 9 4.23416e+00 1.02417e+00 299 2014 10 4.50019e+00 3.31832e+00 1339 2014 11 1.84725e+00 9.28753e-01 1102 2014 12 1.54590e+00 1.24259e+00 599 2015 1 1.85414e+00 1.47458e+00 832 2015 2 1.82292e+00 7.56327e-01 768 2015 3 9.21569e+00 6.52613e+00 416 2015 4 4.23881e+00 1.25332e+00 149 2015 5 3.68485e+00 1.48656e+00 530 2015 6 3.25744e+00 1.23090e+00 359 2015 7 3.19716e+00 1.61903e+00 192 2015 8 7.00316e+00 4.12040e+00 405 2015 9 5.65526e+00 1.73430e+00 190 2015 10 2.58225e+00 1.11605e+00 741 2015 11 5.33349e+00 3.12404e+00 705 2015 12 2.17330e+00 9.87202e-01 448 2016 1 2.14123e+00 9.62573e-01 546 2016 2 4.14664e+00 3.55114e+00 1240 2016 3 3.61216e+00 2.00469e+00 750 2016 4 3.68626e+00 2.21511e+00 384 2016 5 2.99244e+00 1.12618e+00 703 2016 6 2.09024e+00 7.57198e-01 642 2016 7 3.34469e+00 4.11816e+00 1015 2016 8 5.61931e+00 5.03654e+00 700 2016 9 4.60748e+00 2.81613e+00 836 2016 10 3.17575e+00 3.43842e+00 1062 2016 11 1.17906e+00 1.14844e+00 958 2016 12 1.57652e+00 9.10727e-01 871 2017 1 2.18419e+00 1.99493e+00 684 2017 2 2.51628e+00 1.63276e+00 1070 2017 3 2.24303e+00 1.50451e+00 1083 2017 4 1.88212e+00 9.36451e-01 703 2017 5 1.89472e+00 5.60093e-01 532 2017 6 2.20079e+00 7.96130e-01 345 2017 7 3.20047e+00 7.49394e-01 108 2017 8 4.71911e+00 2.06463e+00 532 2017 9 6.10335e+00 5.90699e+00 516 2017 10 7.38836e+00 5.17951e+00 239 2017 11 2.95211e+00 2.13313e+00 1246 2017 12 1.98290e+00 7.76790e-01 687 2018 1 1.57733e+00 7.53304e-01 640 2018 2 3.01229e+00 1.66801e+00 635 2018 3 2.18283e+00 1.93806e+00 804 2018 4 2.39704e+00 9.76477e-01 608 2018 5 2.53111e+00 1.15592e+00 424 2018 6 2.95800e+00 1.01816e+00 320 2018 7 6.02583e+00 6.76193e+00 261 2018 8 1.32356e+01 1.18532e+01 121 2018 9 4.95289e+00 2.56155e+00 735 2018 10 4.20278e+00 2.77412e+00 1029 2018 11 3.56195e+00 9.05021e-01 189 2018 12 5.35177e+00 4.00244e+00 779 2019 1 1.31633e+01 7.93069e+00 600 2019 2 2.93816e+01 9.01154e+00 164 2019 3 7.73939e+00 8.67557e+00 703 2019 4 4.65057e+00 1.62209e+00 425 2019 5 2.60193e+00 1.17844e+00 743 2019 6 3.64771e+00 1.83916e+00 147 2019 7 2.41848e+00 1.00790e+00 320 2019 8 8.32233e+00 1.11127e+01 297 2019 9 3.01806e+00 1.49532e+00 646 2019 10 3.38215e+00 2.66496e+00 586 2019 11 1.57907e+00 1.07998e+00 887 2019 12 2.24511e+00 1.06715e+00 642 2020 1 1.79767e+00 8.12397e-01 715 2020 2 1.86836e+00 7.46351e-01 543 2020 3 2.71548e+00 2.55589e+00 692 2020 4 3.57978e+00 1.69475e+00 443 2020 5 2.76360e+00 2.23294e+00 781 2020 6 3.30084e+00 2.24286e+00 508 2020 7 3.57496e+00 1.51494e+00 254 2020 8 5.38485e+00 3.91681e+00 250 2020 9 6.17622e+00 1.86062e+00 321 2020 10 6.21661e+00 6.29105e+00 877 2020 11 4.12078e+00 1.90860e+00 1002 2020 12 1.61775e+00 1.03543e+00 692 2021 1 4.02308e+00 1.96951e+00 441 2021 2 5.34159e+00 3.00774e+00 487 2021 3 5.89536e+00 6.06391e+00 476 2021 4 5.39069e+00 2.40995e+00 564 2021 5 4.32046e+00 2.58712e+00 625 2021 6 2.80786e+00 8.95516e-01 268 2021 7 2.96666e+00 7.89019e-01 64 2021 8 1.35313e+01 1.43865e+01 111 2021 9 1.83013e+01 1.18851e+01 389 2021 10 7.14672e+00 6.41094e+00 627 2021 11 3.61825e+00 1.06998e+00 960 2021 12 4.20906e+00 3.61309e+00 661 2022 1 3.05405e+00 1.05693e+00 706 2022 2 2.60588e+00 1.95049e+00 1024 2022 3 3.01691e+00 1.99849e+00 771 2022 4 1.96293e+01 5.54360e+00 21 2022 5 4.78327e+00 2.84700e+00 334 2022 6 4.49394e+00 1.91701e+00 354 2022 7 4.07547e+00 4.82920e+00 235 2022 8 6.79179e+00 6.46110e+00 444 2022 9 4.79795e+00 3.09320e+00 294 2022 10 1.51438e+00 7.89248e-01 1206 2022 11 2.54955e+00 2.88525e+00 515 2022 12 2.32196e+00 1.81918e+00 907 2023 1 1.70991e+00 7.93363e-01 874 2023 2 1.57779e+00 5.15151e-01 612 2023 3 5.39764e+00 4.51327e+00 830 2023 4 4.50914e+00 1.68248e+00 384 2023 5 2.91035e+00 1.15439e+00 340 2023 6 1.76850e+00 1.06862e+00 161 2023 7 8.62449e+00 9.25768e+00 419 2023 8 8.16637e+00 8.65400e+00 467 2023 9 5.47155e+00 3.43277e+00 590 2023 10 2.78274e+00 1.67864e+00 491 2023 11 1.99374e+00 1.34116e+00 703 2023 12 3.85929e+00 2.02069e+00 334 2024 1 1.39471e+01 8.01273e+00 575 2024 2 6.71851e+00 3.31177e+00 642 2024 3 8.38118e+00 6.31933e+00 424 2024 4 nan nan 0