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 4.04487e+01 5.37803e+00 121 2002 8 4.63195e+01 2.42223e+01 115 2002 9 3.47095e+01 3.30488e+00 64 2002 10 3.99490e+01 1.17344e+01 590 2002 11 2.59339e+01 1.38701e+01 587 2002 12 2.09546e+01 1.37218e+01 394 2003 1 1.72502e+01 1.06214e+01 732 2003 2 3.02987e+01 1.04631e+01 519 2003 3 1.45739e+01 1.84365e+01 56 2003 4 nan nan 0 2003 5 nan nan 0 2003 6 nan nan 0 2003 7 nan nan 0 2003 8 2.82338e+01 1.94746e+01 90 2003 9 3.94515e+01 2.04930e+01 128 2003 10 2.71592e+01 1.09612e+01 289 2003 11 3.63515e+01 1.06977e+01 635 2003 12 3.04061e+01 1.19627e+01 611 2004 1 3.68848e+01 8.97218e+00 761 2004 2 2.81080e+01 1.09782e+01 196 2004 3 2.16003e+01 1.22662e+01 483 2004 4 2.90433e+01 1.47886e+01 304 2004 5 4.39216e+01 1.52291e+01 164 2004 6 5.31970e+01 9.00033e+00 189 2004 7 4.31293e+01 1.45437e+01 99 2004 8 4.23081e+01 1.69562e+01 176 2004 9 1.76826e+01 2.11648e+01 43 2004 10 1.71244e+01 1.19785e+01 153 2004 11 8.26611e+00 6.57047e+00 171 2004 12 1.59560e+01 7.99344e+00 260 2005 1 1.84084e+01 1.06150e+01 382 2005 2 2.45154e+01 1.40993e+01 353 2005 3 2.43018e+01 9.94323e+00 276 2005 4 1.25804e+01 6.92702e+00 98 2005 5 1.31747e-01 9.31590e-02 3 2005 6 2.45357e+01 1.39594e+01 75 2005 7 1.07659e+01 6.12597e+00 63 2005 8 1.96737e+00 1.48570e+00 12 2005 9 3.20145e+01 1.03616e+01 205 2005 10 3.27677e+01 1.52150e+01 414 2005 11 4.09596e+01 9.97590e+00 555 2005 12 3.13721e+01 1.11077e+01 510 2006 1 1.59677e+01 6.76007e+00 413 2006 2 1.46561e+01 7.58050e+00 392 2006 3 1.37290e+01 8.66436e+00 584 2006 4 3.32897e+01 1.12522e+01 198 2006 5 3.39430e+01 9.64660e+00 149 2006 6 4.79658e+01 8.12267e+00 169 2006 7 4.90653e+01 3.65470e+00 42 2006 8 4.23955e+01 1.91280e+00 64 2006 9 4.43409e+01 1.00584e+01 336 2006 10 3.91152e+01 1.23692e+01 435 2006 11 4.19599e+01 1.19064e+01 502 2006 12 5.49616e+01 1.00444e+01 258 2007 1 4.06896e+01 1.20876e+01 316 2007 2 4.50257e+01 1.18671e+01 534 2007 3 4.51160e+01 1.14935e+01 666 2007 4 4.56099e+01 1.11100e+01 307 2007 5 4.55404e+01 1.03438e+01 40 2007 6 5.52692e+01 7.11494e+00 72 2007 7 5.03276e+01 9.95116e+00 181 2007 8 4.84908e+01 6.94262e+00 150 2007 9 5.66446e+01 8.34593e+00 175 2007 10 5.38696e+01 1.49435e+01 325 2007 11 4.95249e+01 1.27184e+01 678 2007 12 5.57439e+01 1.36762e+01 359 2008 1 3.95594e+01 1.46285e+01 436 2008 2 4.36753e+01 1.23653e+01 635 2008 3 4.08053e+01 8.87975e+00 376 2008 4 2.69837e+01 1.37893e+01 202 2008 5 3.78316e+01 9.53007e+00 223 2008 6 3.91277e+01 1.22063e+01 183 2008 7 4.30260e+01 7.91452e+00 165 2008 8 4.30472e+01 7.37191e+00 64 2008 9 1.67607e+01 1.74080e+01 159 2008 10 3.88612e+01 1.20800e+01 608 2008 11 3.99960e+01 1.18979e+01 686 2008 12 3.17305e+01 1.56473e+01 614 2009 1 3.33603e+01 1.40903e+01 595 2009 2 3.62889e+01 1.35214e+01 692 2009 3 4.76223e+01 1.38260e+01 455 2009 4 3.24734e+01 1.37928e+01 225 2009 5 2.51234e+01 7.41351e+00 110 2009 6 3.75763e+01 7.09919e+00 132 2009 7 4.76374e+01 4.74307e+00 63 2009 8 3.07726e+01 1.08401e+01 169 2009 9 3.71560e+01 1.64562e+01 235 2009 10 3.49767e+01 1.59200e+01 385 2009 11 4.66562e+01 8.84414e+00 460 2009 12 3.35907e+01 1.32154e+01 188 2010 1 3.05111e+01 9.18175e+00 641 2010 2 9.96417e+00 1.00376e+01 230 2010 3 4.90570e+00 5.78255e+00 342 2010 4 2.01598e+01 1.66489e+01 167 2010 5 2.74090e+01 1.69989e+01 163 2010 6 1.56507e+01 1.38930e+01 97 2010 7 3.92258e+01 4.25191e+00 124 2010 8 2.80110e+01 1.46251e+01 79 2010 9 4.41846e+01 2.31508e+01 172 2010 10 3.48376e+01 1.59605e+01 948 2010 11 4.23736e+01 1.33368e+01 762 2010 12 3.50958e+01 1.29366e+01 633 2011 1 3.65393e+01 1.37089e+01 534 2011 2 3.90110e+01 1.35303e+01 491 2011 3 3.78260e+01 1.20384e+01 669 2011 4 4.30326e+01 7.72446e+00 372 2011 5 4.05903e+01 1.38964e+01 254 2011 6 5.56309e+01 3.01816e+00 34 2011 7 5.00558e+01 7.89584e+00 49 2011 8 4.02617e+01 1.56883e+01 169 2011 9 4.22145e+01 1.45174e+01 404 2011 10 4.05572e+01 1.57614e+01 705 2011 11 4.63980e+01 1.35596e+01 584 2011 12 5.00981e+01 1.23537e+01 613 2012 1 4.19420e+01 1.46524e+01 840 2012 2 4.68858e+01 1.28671e+01 246 2012 3 4.40543e+01 1.36464e+01 577 2012 4 4.71978e+01 1.15795e+01 392 2012 5 4.97079e+01 1.27199e+01 220 2012 6 5.09532e+01 0.00000e+00 1 2012 7 5.88529e+00 5.71396e+00 59 2012 8 nan nan 0 2012 9 9.11430e+00 1.05436e+01 29 2012 10 6.94922e+00 5.67676e+00 90 2012 11 2.84684e+01 1.12216e+01 553 2012 12 2.91124e+01 1.51887e+01 138 2013 1 3.84149e+01 1.56605e+01 402 2013 2 3.31164e+01 8.92605e+00 299 2013 3 2.57661e+01 1.14313e+01 490 2013 4 2.78858e+01 9.51857e+00 237 2013 5 3.77901e+01 6.11901e+00 150 2013 6 4.33300e+01 2.34037e+01 183 2013 7 8.96344e+01 0.00000e+00 2 2013 8 4.04358e+00 3.70305e+00 29 2013 9 3.18905e+01 2.54722e+01 111 2013 10 2.10813e+01 1.22557e+01 307 2013 11 3.18348e+01 1.28365e+01 198 2013 12 3.90642e+01 1.05348e+01 488 2014 1 2.63413e+01 1.42769e+01 412 2014 2 3.09186e+01 1.31901e+01 390 2014 3 1.88142e+01 1.33565e+01 246 2014 4 2.05136e-09 5.02435e-09 7 2014 5 nan nan 0 2014 6 1.13654e+01 1.30664e+01 22 2014 7 2.45077e+01 8.08559e+00 268 2014 8 1.48415e+01 1.18216e+01 77 2014 9 3.85942e+01 6.98400e+00 65 2014 10 2.72304e+01 1.41571e+01 859 2014 11 3.38900e+01 1.34588e+01 654 2014 12 4.54513e+01 1.50613e+01 389 2015 1 3.91769e+01 1.52983e+01 510 2015 2 2.52275e+01 8.54798e+00 563 2015 3 2.54536e+01 9.41592e+00 335 2015 4 nan nan 0 2015 5 4.24951e+01 8.11992e+00 127 2015 6 4.37492e+01 9.07464e+00 147 2015 7 5.57446e+01 1.24029e+01 135 2015 8 1.65231e+01 1.05670e+01 96 2015 9 1.63960e+01 1.34952e+01 79 2015 10 3.31033e+01 1.18050e+01 323 2015 11 3.56862e+01 1.29816e+01 312 2015 12 3.82472e+01 1.32496e+01 468 2016 1 3.17633e+01 1.04236e+01 349 2016 2 2.79241e+01 1.37185e+01 600 2016 3 2.97178e+01 1.18027e+01 481 2016 4 2.68467e+01 1.66036e+01 281 2016 5 2.78894e+01 9.49535e+00 100 2016 6 3.75448e+01 1.85710e+01 169 2016 7 4.11377e+01 7.88574e+00 236 2016 8 2.15768e+01 1.48311e+01 233 2016 9 1.78335e+01 1.23159e+01 281 2016 10 2.70204e+01 1.37005e+01 409 2016 11 4.20483e+01 1.42941e+01 548 2016 12 4.39013e+01 1.31955e+01 417 2017 1 3.27417e+01 1.78876e+01 432 2017 2 3.82517e+01 1.39067e+01 733 2017 3 4.26777e+01 1.26537e+01 492 2017 4 3.55432e+01 1.71114e+01 392 2017 5 2.89142e+01 1.36382e+01 148 2017 6 5.41736e+01 2.39421e+01 101 2017 7 2.65662e+01 1.38916e+01 55 2017 8 3.78658e+01 1.56875e+01 192 2017 9 2.67768e+01 1.54162e+01 253 2017 10 1.58154e+01 1.10285e+01 234 2017 11 3.73770e+01 1.14474e+01 694 2017 12 4.14546e+01 1.22169e+01 452 2018 1 3.15230e+01 1.39866e+01 426 2018 2 4.70140e+01 7.16093e+00 407 2018 3 2.66090e+01 1.51126e+01 662 2018 4 3.05163e+01 1.33033e+01 151 2018 5 3.99935e+01 1.45635e+01 331 2018 6 2.35390e+01 1.12585e+01 240 2018 7 3.18945e+01 2.65712e+01 51 2018 8 4.85564e+00 1.07619e+01 109 2018 9 2.78633e+01 1.89964e+01 235 2018 10 1.94988e+01 1.10185e+01 563 2018 11 1.71506e+01 9.13571e+00 150 2018 12 1.81317e+01 1.17901e+01 234 2019 1 1.02053e+01 7.50740e+00 202 2019 2 2.66291e+01 1.15192e+01 292 2019 3 1.95614e+01 1.35480e+01 429 2019 4 2.77643e+01 9.62182e+00 298 2019 5 3.86038e+01 1.29893e+01 159 2019 6 3.53152e+01 2.17434e+00 2 2019 7 4.39026e+01 4.49406e+00 69 2019 8 2.83490e+01 1.29031e+01 77 2019 9 3.07522e+01 1.24001e+01 120 2019 10 3.47970e+01 1.22550e+01 353 2019 11 4.19066e+01 1.32799e+01 465 2019 12 4.00707e+01 1.62589e+01 256 2020 1 3.68825e+01 1.03886e+01 387 2020 2 2.79920e+01 1.61230e+01 324 2020 3 3.45139e+01 1.00999e+01 459 2020 4 2.99089e+01 1.06597e+01 372 2020 5 2.81679e+01 1.45920e+01 173 2020 6 3.44039e+01 1.20336e+01 160 2020 7 3.82099e+01 9.49081e+00 86 2020 8 2.68888e+01 1.66528e+01 128 2020 9 1.61099e+01 5.17897e+00 115 2020 10 1.32499e+01 8.11822e+00 93 2020 11 2.50120e+01 1.30399e+01 303 2020 12 2.83008e+01 1.18475e+01 343 2021 1 1.78621e+01 9.82382e+00 394 2021 2 2.18420e+01 1.36721e+01 240 2021 3 1.13618e+01 8.43512e+00 206 2021 4 1.44642e+01 9.95500e+00 152 2021 5 2.72731e+01 1.52784e+01 305 2021 6 3.79668e+01 8.50118e+00 118 2021 7 nan nan 0 2021 8 nan nan 0 2021 9 2.85506e+01 2.02998e+01 164 2021 10 2.33688e+01 1.22814e+01 193 2021 11 2.05749e+01 1.08332e+01 376 2021 12 3.34983e+01 1.79469e+01 420 2022 1 2.37109e+01 7.39070e+00 506 2022 2 3.05870e+01 1.21787e+01 613 2022 3 3.33366e+01 1.85098e+01 419 2022 4 9.41869e+01 4.02095e+00 2 2022 5 2.14119e+01 9.89596e+00 301 2022 6 3.78627e+01 1.52853e+01 198 2022 7 5.94602e+01 1.59664e+01 127 2022 8 4.83852e+01 1.34456e+01 161 2022 9 2.99953e+01 9.94818e+00 183 2022 10 3.62886e+01 1.38117e+01 848 2022 11 4.31265e+01 1.31521e+01 393 2022 12 4.29008e+01 1.78348e+01 761 2023 1 4.66432e+01 8.41806e+00 733 2023 2 4.45997e+01 1.14412e+01 464 2023 3 4.13788e+01 1.27798e+01 561 2023 4 4.78615e+01 1.30283e+01 426 2023 5 3.86979e+01 2.08134e+01 107 2023 6 3.60417e+01 2.97992e+01 160 2023 7 3.11465e+01 2.41994e+01 56 2023 8 3.75631e+01 2.46122e+01 242 2023 9 1.93882e+01 1.11577e+01 253 2023 10 2.35553e+01 1.63554e+01 290 2023 11 3.75761e+01 1.52014e+01 506 2023 12 8.47921e+00 6.74037e+00 119 2024 1 6.83965e+00 6.82489e+00 92 2024 2 9.08508e+00 8.04307e+00 401 2024 3 3.76924e+01 2.73391e+01 48 2024 4 nan nan 0