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 7.87592e+00 2.32858e+00 142 2002 8 6.63162e+00 1.70191e+00 363 2002 9 6.30545e+00 2.33902e+00 156 2002 10 6.64350e+00 2.02461e+00 565 2002 11 1.26987e+01 6.35054e+00 518 2002 12 1.66287e+01 8.58285e+00 419 2003 1 2.11237e+01 9.20624e+00 358 2003 2 1.31684e+01 5.45533e+00 362 2003 3 nan nan 0 2003 4 nan nan 0 2003 5 2.82036e+01 9.30432e+00 53 2003 6 1.52633e+01 6.85839e+00 58 2003 7 nan nan 0 2003 8 2.48358e+01 1.11976e+01 84 2003 9 2.10219e+01 7.96354e+00 66 2003 10 1.90726e+01 9.06716e+00 321 2003 11 2.03679e+01 1.27964e+01 324 2003 12 1.68812e+01 1.02541e+01 498 2004 1 1.13293e+01 6.06582e+00 754 2004 2 1.93065e+01 1.03638e+01 277 2004 3 1.93092e+01 1.24941e+01 75 2004 4 1.24310e+01 6.22861e+00 287 2004 5 7.14341e+00 2.35888e+00 485 2004 6 6.47499e+00 2.75806e+00 332 2004 7 2.07701e+01 9.71789e+00 90 2004 8 1.57495e+01 9.42906e+00 267 2004 9 nan nan 0 2004 10 nan nan 0 2004 11 3.34161e+01 5.21591e+00 8 2004 12 2.53594e+01 1.07913e+01 119 2005 1 2.51293e+01 8.97171e+00 102 2005 2 2.03709e+01 9.97751e+00 196 2005 3 2.01547e+01 1.14029e+01 100 2005 4 nan nan 0 2005 5 nan nan 0 2005 6 2.93753e+01 9.40728e+00 71 2005 7 2.93311e+01 5.47471e+00 6 2005 8 nan nan 0 2005 9 1.02290e+01 4.43214e+00 130 2005 10 1.87883e+01 9.07055e+00 624 2005 11 1.44446e+01 7.81086e+00 628 2005 12 1.74691e+01 1.03534e+01 525 2006 1 3.19310e+01 1.41560e+01 65 2006 2 2.93831e+01 5.75740e+00 12 2006 3 2.94436e+01 1.06251e+01 117 2006 4 1.71533e+01 1.12793e+01 156 2006 5 8.76515e+00 3.37202e+00 234 2006 6 8.33939e+00 2.55013e+00 177 2006 7 1.15443e+01 2.70767e+00 88 2006 8 8.76945e+00 2.75796e+00 191 2006 9 8.33729e+00 2.23737e+00 654 2006 10 8.10988e+00 3.81079e+00 434 2006 11 6.87352e+00 3.94385e+00 730 2006 12 3.31157e+00 1.38190e+00 448 2007 1 6.02799e+00 2.39849e+00 294 2007 2 9.74844e+00 5.56157e+00 480 2007 3 1.00848e+01 6.09918e+00 880 2007 4 7.76351e+00 2.78424e+00 407 2007 5 9.73437e+00 3.85110e+00 116 2007 6 7.08174e+00 2.31331e+00 257 2007 7 9.13005e+00 5.60373e+00 351 2007 8 9.27701e+00 3.35826e+00 169 2007 9 8.85462e+00 3.62874e+00 325 2007 10 8.74054e+00 3.62284e+00 504 2007 11 2.42720e+01 1.03960e+01 583 2007 12 1.14500e+01 7.52306e+00 674 2008 1 9.98829e+00 8.21021e+00 450 2008 2 1.24159e+01 9.19387e+00 594 2008 3 3.37891e+01 7.92778e+00 24 2008 4 1.81938e+01 1.06629e+01 75 2008 5 1.74483e+01 7.71505e+00 183 2008 6 1.01235e+01 3.01816e+00 312 2008 7 8.06623e+00 2.00329e+00 261 2008 8 1.25374e+01 1.04736e+01 80 2008 9 1.51042e+01 9.40927e+00 78 2008 10 2.14089e+01 1.12612e+01 155 2008 11 2.03348e+01 1.09234e+01 512 2008 12 2.18061e+01 1.09230e+01 606 2009 1 1.92172e+01 1.02987e+01 416 2009 2 9.64305e+00 2.96795e+00 773 2009 3 9.80226e+00 7.09392e+00 537 2009 4 1.90880e+01 7.07397e+00 77 2009 5 1.98550e+01 1.01449e+01 5 2009 6 3.56754e+01 0.00000e+00 2 2009 7 nan nan 0 2009 8 1.77842e+01 1.32757e+01 125 2009 9 1.84160e+01 9.97167e+00 334 2009 10 1.24656e+01 7.30913e+00 496 2009 11 8.73633e+00 4.08849e+00 731 2009 12 2.15209e+01 9.75617e+00 134 2010 1 2.10699e+01 1.16733e+01 424 2010 2 3.71001e+01 9.17412e+00 29 2010 3 3.10008e+01 1.30764e+01 21 2010 4 nan nan 0 2010 5 1.80342e+01 8.03366e+00 251 2010 6 1.38021e+01 5.32236e+00 312 2010 7 1.57022e+01 7.20724e+00 142 2010 8 2.03436e+01 9.89969e+00 76 2010 9 1.54141e+01 8.77560e+00 367 2010 10 9.23139e+00 3.92101e+00 1298 2010 11 7.45948e+00 3.25381e+00 967 2010 12 5.29891e+00 3.01375e+00 744 2011 1 5.70439e+00 2.62764e+00 555 2011 2 6.67887e+00 3.35476e+00 786 2011 3 9.18960e+00 5.70767e+00 719 2011 4 1.02677e+01 4.90147e+00 500 2011 5 7.21820e+00 3.32985e+00 440 2011 6 7.41455e+00 1.76036e+00 200 2011 7 6.82602e+00 2.77322e+00 229 2011 8 7.74183e+00 1.45440e+00 109 2011 9 6.27130e+00 1.46463e+00 596 2011 10 5.89907e+00 2.78674e+00 801 2011 11 5.69795e+00 2.42733e+00 885 2011 12 5.05652e+00 2.16241e+00 684 2012 1 5.66415e+00 2.97262e+00 851 2012 2 2.74846e+00 5.22344e-01 88 2012 3 1.08977e+01 9.41387e+00 493 2012 4 1.49589e+01 7.69977e+00 326 2012 5 6.19012e+00 1.64183e+00 256 2012 6 7.56475e+00 1.37992e+00 19 2012 7 nan nan 0 2012 8 nan nan 0 2012 9 nan nan 0 2012 10 nan nan 0 2012 11 1.34932e+01 7.15377e+00 517 2012 12 1.21616e+01 7.75113e+00 315 2013 1 6.99838e+00 2.33107e+00 469 2013 2 7.58702e+00 2.76818e+00 461 2013 3 2.47181e+01 1.34998e+01 73 2013 4 3.51498e+01 9.27961e+00 22 2013 5 nan nan 0 2013 6 1.77181e+01 1.29452e+01 166 2013 7 3.43640e+00 5.87542e-01 64 2013 8 nan nan 0 2013 9 1.74770e-01 1.37838e-01 4 2013 10 1.82425e+01 8.71691e+00 317 2013 11 1.30052e+01 7.66840e+00 186 2013 12 1.33355e+01 7.14932e+00 167 2014 1 1.88591e+01 9.08056e+00 71 2014 2 3.04236e+01 1.09039e+01 56 2014 3 3.72451e+01 9.74626e+00 30 2014 4 nan nan 0 2014 5 nan nan 0 2014 6 3.53303e+01 7.63198e+00 5 2014 7 2.79656e+01 1.06146e+01 85 2014 8 2.37226e+01 1.00334e+01 158 2014 9 1.37483e+01 7.39473e+00 90 2014 10 2.20200e+01 1.55056e+01 52 2014 11 1.83303e+01 1.06079e+01 602 2014 12 1.92387e+01 1.23572e+01 555 2015 1 3.59889e+01 8.95775e+00 30 2015 2 3.85149e+01 1.10031e+01 15 2015 3 3.05558e+01 0.00000e+00 1 2015 4 3.17970e+01 1.00811e+01 30 2015 5 1.28285e+01 8.78705e+00 209 2015 6 9.00166e+00 4.92742e+00 215 2015 7 1.58789e+01 1.34997e+01 105 2015 8 1.78835e+01 1.07848e+01 52 2015 9 3.06777e+01 1.08410e+01 24 2015 10 2.15560e+01 1.15268e+01 283 2015 11 1.23326e+01 7.06734e+00 312 2015 12 1.09729e+01 6.62476e+00 326 2016 1 2.18221e+01 1.04910e+01 269 2016 2 2.34765e+01 1.18012e+01 123 2016 3 2.50692e+01 8.08939e+00 192 2016 4 2.54851e+01 7.63232e+00 14 2016 5 1.85171e+01 9.69731e+00 260 2016 6 1.21728e+01 5.72412e+00 473 2016 7 1.21833e+01 6.30326e+00 658 2016 8 1.27945e+01 8.55828e+00 444 2016 9 2.52953e+01 1.23995e+01 64 2016 10 1.26857e+01 6.76802e+00 409 2016 11 6.07976e+00 2.39225e+00 739 2016 12 5.43216e+00 2.17221e+00 561 2017 1 7.12460e+00 2.57583e+00 363 2017 2 2.32426e+01 1.13023e+01 112 2017 3 1.48772e+01 7.77112e+00 607 2017 4 7.93841e+00 3.80905e+00 606 2017 5 7.58175e+00 2.93235e+00 300 2017 6 7.81700e+00 4.44018e+00 313 2017 7 nan nan 0 2017 8 1.33027e+01 9.95407e+00 145 2017 9 2.62299e+01 6.54261e+00 25 2017 10 2.30704e+01 1.22833e+01 27 2017 11 2.07482e+01 1.14883e+01 468 2017 12 1.22845e+01 6.37534e+00 632 2018 1 1.20523e+01 4.98606e+00 414 2018 2 1.23153e+01 9.11430e+00 520 2018 3 1.38784e+01 6.81340e+00 434 2018 4 1.16363e+01 4.25032e+00 387 2018 5 1.07024e+01 5.93617e+00 314 2018 6 2.06094e+01 0.00000e+00 6 2018 7 3.74677e+01 7.51499e+00 10 2018 8 2.31055e+01 1.08377e+01 24 2018 9 2.01090e+01 1.01139e+01 224 2018 10 2.02848e+01 1.07163e+01 416 2018 11 1.16715e+01 7.45011e+00 215 2018 12 2.79020e+01 1.24379e+01 105 2019 1 nan nan 0 2019 2 2.94289e+01 1.00420e+01 74 2019 3 2.95469e+01 9.73688e+00 74 2019 4 1.77474e+01 1.19934e+01 97 2019 5 9.81755e+00 2.98725e+00 303 2019 6 7.68972e+00 4.20714e+00 152 2019 7 1.08650e+01 7.29257e+00 133 2019 8 2.73720e+01 8.52841e+00 15 2019 9 1.20021e+01 5.28118e+00 142 2019 10 9.32008e+00 3.50016e+00 401 2019 11 5.92329e+00 2.59066e+00 697 2019 12 6.90750e+00 3.45306e+00 159 2020 1 1.57272e+01 8.24649e+00 441 2020 2 1.23551e+01 5.63919e+00 324 2020 3 1.94184e+01 1.24872e+01 167 2020 4 1.34873e+01 3.85480e+00 39 2020 5 1.83015e+01 7.52191e+00 53 2020 6 2.68025e+01 1.07669e+01 10 2020 7 nan nan 0 2020 8 1.84220e+01 7.34361e+00 6 2020 9 1.37275e+01 8.47377e+00 109 2020 10 2.15999e+01 1.05179e+01 143 2020 11 1.52528e+01 1.03859e+01 274 2020 12 1.33907e+01 8.03551e+00 419 2021 1 2.05673e+01 7.47265e+00 72 2021 2 2.56279e+01 8.32011e+00 155 2021 3 nan nan 0 2021 4 2.77994e+01 9.63102e+00 20 2021 5 1.40467e+01 8.59406e+00 169 2021 6 9.13621e+00 5.53310e+00 137 2021 7 nan nan 0 2021 8 2.75783e+01 9.68590e+00 6 2021 9 1.73382e+01 1.03184e+01 74 2021 10 2.39413e+01 1.63079e+01 25 2021 11 1.97337e+01 8.82891e+00 114 2021 12 1.44122e+01 8.42286e+00 460 2022 1 2.57045e+01 1.12039e+01 234 2022 2 1.64394e+01 7.75633e+00 503 2022 3 1.23178e+01 6.28668e+00 418 2022 4 nan nan 0 2022 5 1.90802e+01 7.92386e+00 117 2022 6 2.09105e+01 1.01174e+01 206 2022 7 7.72396e+00 4.59342e+00 268 2022 8 1.52864e+01 1.14497e+01 171 2022 9 1.88122e+01 1.05903e+01 15 2022 10 1.31660e+01 7.36352e+00 528 2022 11 1.55781e+01 9.48347e+00 413 2022 12 1.08675e+01 8.60972e+00 654 2023 1 7.47689e+00 3.56042e+00 715 2023 2 1.41578e+01 9.87571e+00 395 2023 3 2.19540e+01 6.78497e+00 69 2023 4 1.72633e+01 1.19433e+01 235 2023 5 1.49246e+01 5.56013e+00 256 2023 6 1.38867e+01 7.24669e+00 91 2023 7 2.81966e+01 0.00000e+00 2 2023 8 8.78020e+00 1.06636e+01 72 2023 9 1.40521e+01 1.36851e+01 76 2023 10 2.47968e+01 1.15691e+01 283 2023 11 2.16647e+01 1.01295e+01 269 2023 12 3.12575e+01 9.69268e+00 24 2024 1 4.67182e+01 0.00000e+00 4 2024 2 3.94220e+01 1.08370e+01 8 2024 3 3.37507e+01 1.13117e+01 49 2024 4 nan nan 0