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 2.62600e+01 1.43883e+00 266 2002 8 1.48600e+01 1.03823e+00 70 2002 9 2.08286e+01 1.24351e+00 63 2002 10 1.59705e+01 3.57063e+00 201 2002 11 3.92561e+00 1.04625e-01 37 2002 12 1.42160e+01 2.55848e-01 69 2003 1 nan nan 0 2003 2 1.41749e+01 3.30105e+00 823 2003 3 2.46458e+01 3.06752e+00 642 2003 4 1.59648e+01 5.52498e+00 379 2003 5 3.00344e+01 2.77294e+00 832 2003 6 2.25193e+01 5.33924e+00 256 2003 7 2.05145e+01 2.42843e+00 370 2003 8 2.03089e+01 3.85120e+00 258 2003 9 1.70761e+01 2.76934e+00 289 2003 10 5.82650e+00 4.81450e-01 2 2003 11 9.40063e+00 2.38750e+00 487 2003 12 2.82409e+00 2.65209e+00 34 2004 1 1.93676e+01 1.37555e+00 233 2004 2 2.05939e+01 6.36247e+00 603 2004 3 2.09641e+01 6.02334e+00 493 2004 4 2.13716e+01 2.15618e+00 521 2004 5 2.18791e+01 7.69851e+00 729 2004 6 2.86501e+01 3.72202e+00 395 2004 7 2.55695e+01 3.06985e+00 335 2004 8 2.08200e+01 1.71813e+00 416 2004 9 1.87311e+01 1.37780e+00 128 2004 10 1.62650e+01 1.94783e+00 298 2004 11 1.92703e+01 2.06166e+00 255 2004 12 1.88581e-01 2.03628e-01 141 2005 1 7.97146e+00 2.79483e+00 490 2005 2 2.43316e+01 4.89790e+00 672 2005 3 1.93689e+01 1.07505e+01 283 2005 4 2.24734e+01 4.90743e+00 708 2005 5 2.48905e+01 2.32769e+00 535 2005 6 2.49957e+01 5.44705e+00 89 2005 7 2.25227e+01 6.44831e+00 429 2005 8 2.16502e+01 5.68487e+00 365 2005 9 1.90736e+01 4.27113e+00 514 2005 10 1.77216e+01 3.21696e+00 226 2005 11 7.21193e-01 6.54558e-01 775 2005 12 6.13121e-01 6.87854e-01 683 2006 1 7.88184e-01 1.04693e+00 823 2006 2 6.99049e+00 5.86252e+00 637 2006 3 1.77173e+01 2.16552e+00 472 2006 4 2.39519e+01 5.38168e+00 598 2006 5 2.36772e+01 3.09604e+00 424 2006 6 2.49716e+01 4.41467e+00 867 2006 7 2.00407e+01 2.27793e+00 385 2006 8 1.69147e+01 6.17256e+00 260 2006 9 1.62762e+01 1.46393e+00 304 2006 10 1.23909e+01 1.97545e+00 203 2006 11 7.78093e-01 0.00000e+00 2 2006 12 3.48029e+00 4.26920e+00 386 2007 1 2.85981e+00 2.56977e+00 565 2007 2 6.08864e+00 7.78581e+00 170 2007 3 1.61835e+01 2.70747e+00 349 2007 4 1.76096e+01 3.70605e+00 332 2007 5 2.13519e+01 5.55770e+00 496 2007 6 2.67063e+01 2.82143e+00 178 2007 7 2.09983e+01 3.08228e+00 431 2007 8 1.56846e+01 5.62353e-01 105 2007 9 1.48482e+01 1.62420e+00 106 2007 10 9.56327e+00 0.00000e+00 2 2007 11 5.27510e+00 2.53484e+00 259 2007 12 8.16313e+00 2.05324e+00 530 2008 1 2.09740e+01 7.17200e-01 64 2008 2 2.22575e+01 4.89522e+00 591 2008 3 1.40367e+01 3.58294e+00 442 2008 4 1.98310e+01 5.74705e+00 531 2008 5 2.37877e+01 5.73532e+00 456 2008 6 1.41903e+01 3.62468e+00 296 2008 7 1.18225e+01 3.42885e+00 127 2008 8 1.97460e+01 4.72621e+00 415 2008 9 1.46036e+01 5.83945e-01 68 2008 10 2.02685e+01 4.99165e+00 302 2008 11 3.53995e+00 1.81396e+00 438 2008 12 1.09408e+01 1.11445e+00 125 2009 1 nan nan 0 2009 2 1.63070e+01 2.47803e+00 281 2009 3 1.92604e+01 8.50373e+00 704 2009 4 1.70332e+01 7.41829e+00 561 2009 5 2.23653e+01 4.65387e+00 616 2009 6 2.24465e+01 2.16735e+00 236 2009 7 2.29074e+01 1.09533e+00 56 2009 8 7.72564e+00 5.57343e-01 8 2009 9 1.73754e+01 5.31645e+00 322 2009 10 1.39035e+01 2.36256e+00 267 2009 11 1.35036e+00 9.42151e-01 148 2009 12 4.59799e+00 2.90871e+00 369 2010 1 2.49921e+01 7.88924e-01 64 2010 2 2.15027e+01 3.05790e-01 64 2010 3 nan nan 0 2010 4 1.57129e+01 3.55630e-01 110 2010 5 2.83041e+01 4.30195e+00 637 2010 6 2.88669e+01 2.24009e+00 655 2010 7 2.85471e+01 4.57363e+00 527 2010 8 3.12126e+01 6.42053e+00 587 2010 9 2.24247e+01 3.87358e+00 471 2010 10 1.33494e+01 1.20330e+00 156 2010 11 9.60736e+00 1.99962e+00 129 2010 12 nan nan 0 2011 1 nan nan 0 2011 2 2.16331e+01 4.47300e+00 238 2011 3 2.60614e+01 2.17662e+00 941 2011 4 2.85430e+01 3.68482e+00 1024 2011 5 2.09789e+01 4.98703e+00 861 2011 6 1.80731e+01 3.17099e+00 376 2011 7 2.42344e+01 6.55332e+00 400 2011 8 2.49533e+01 2.62913e+00 363 2011 9 1.68050e+01 3.19464e+00 389 2011 10 1.79207e+01 4.45797e+00 168 2011 11 nan nan 0 2011 12 1.16678e+01 3.16045e+00 199 2012 1 2.69842e+00 1.41808e+00 186 2012 2 1.92384e+00 1.41541e+00 511 2012 3 1.20979e+01 3.48722e+00 283 2012 4 1.24773e+01 1.88844e+00 101 2012 5 1.89532e+01 1.53858e+00 139 2012 6 1.96906e+01 1.96105e+00 256 2012 7 2.04660e+01 2.74752e+00 316 2012 8 2.35427e+01 4.17869e+00 460 2012 9 1.95454e+01 4.53909e+00 255 2012 10 1.51892e+01 6.72504e+00 252 2012 11 2.10473e+00 1.50867e+00 529 2012 12 3.46914e+00 2.72420e+00 444 2013 1 1.16542e+01 1.89974e+00 33 2013 2 1.00073e+01 4.04930e-01 64 2013 3 1.57245e+01 1.05281e+01 257 2013 4 2.34718e+01 5.66018e+00 704 2013 5 2.55670e+01 4.76086e+00 691 2013 6 2.18556e+01 1.95328e+00 315 2013 7 2.07472e+01 2.74523e+00 138 2013 8 1.95474e+01 4.02513e+00 345 2013 9 2.05145e+01 1.72949e+00 299 2013 10 1.61741e+01 3.97240e+00 489 2013 11 1.77812e+01 6.20014e-01 65 2013 12 7.24617e+00 1.21387e+00 165 2014 1 nan nan 0 2014 2 2.03034e+01 1.66574e+00 356 2014 3 2.43418e+01 3.31244e+00 143 2014 4 1.69746e+01 4.81778e+00 631 2014 5 2.13410e+01 3.16725e+00 656 2014 6 1.59479e+01 3.17761e+00 465 2014 7 1.51689e+01 1.66129e+00 234 2014 8 1.82327e+01 3.89742e+00 360 2014 9 2.07471e+01 6.45128e+00 305 2014 10 1.89450e+01 5.96528e+00 409 2014 11 1.92969e+01 2.20471e-01 64 2014 12 1.42876e+01 1.98368e+00 172 2015 1 1.63608e+01 6.64578e-01 118 2015 2 nan nan 0 2015 3 2.45792e+01 2.99884e+00 731 2015 4 2.83539e+01 2.24996e+00 448 2015 5 1.99146e+01 2.44733e+00 444 2015 6 1.53567e+01 2.69014e+00 149 2015 7 1.28119e+01 1.25923e+01 28 2015 8 1.64302e+01 3.36695e+00 63 2015 9 1.46978e+01 2.84853e+00 194 2015 10 8.28965e+00 2.77648e+00 244 2015 11 1.77472e+01 5.05176e+00 332 2015 12 1.85982e+01 2.36280e+00 207 2016 1 nan nan 0 2016 2 nan nan 0 2016 3 1.92884e+01 2.21056e+00 103 2016 4 2.25490e+01 3.83476e+00 331 2016 5 1.85941e+01 4.09975e+00 725 2016 6 2.58712e+01 2.28470e+00 576 2016 7 2.34200e+01 1.49681e+00 288 2016 8 2.36690e+01 1.34259e+00 464 2016 9 1.81070e+01 2.90980e+00 481 2016 10 1.06022e+01 3.65281e+00 320 2016 11 3.03502e+00 1.35753e+00 899 2016 12 8.99391e+00 4.03288e+00 584 2017 1 nan nan 0 2017 2 1.75797e+01 1.85375e+00 108 2017 3 1.76890e+01 4.14817e+00 388 2017 4 1.64252e+01 5.18461e+00 479 2017 5 1.00178e+01 3.36879e+00 200 2017 6 2.33843e+01 8.95699e+00 260 2017 7 2.10491e+01 1.55744e+00 286 2017 8 8.84369e+00 4.01299e+00 392 2017 9 1.87697e+00 2.48772e+00 171 2017 10 nan nan 0 2017 11 6.90339e+00 2.98415e+00 971 2017 12 6.85468e+00 2.55528e+00 462 2018 1 1.02615e-01 6.69231e-01 139 2018 2 1.81981e+01 3.78071e+00 816 2018 3 1.92023e+01 3.93259e+00 473 2018 4 2.24778e+01 5.04025e+00 719 2018 5 2.22119e+01 1.77358e+00 256 2018 6 2.66778e+01 5.07557e+00 334 2018 7 2.38755e+01 5.22587e+00 474 2018 8 1.51873e+01 3.84920e+00 278 2018 9 1.36436e+01 6.66048e+00 487 2018 10 8.42905e+00 4.35638e+00 1103 2018 11 5.10304e+00 4.33173e+00 546 2018 12 4.93710e-01 5.80890e-01 460 2019 1 2.18800e+00 1.52902e+00 557 2019 2 1.52693e+01 6.10156e+00 809 2019 3 2.62558e+01 4.74912e+00 474 2019 4 1.92328e+01 2.94048e+00 82 2019 5 4.02938e+00 5.71987e+00 164 2019 6 9.67217e+00 4.08173e+00 678 2019 7 1.85316e+01 4.60685e+00 224 2019 8 1.50645e+01 3.45850e+00 542 2019 9 1.38584e+01 2.60855e+00 119 2019 10 1.39280e+01 3.77525e+00 612 2019 11 6.58752e+00 9.83098e-01 49 2019 12 1.12800e+00 8.40709e-02 8 2020 1 5.73676e+00 7.40871e+00 475 2020 2 1.32115e+00 9.97056e-01 348 2020 3 2.38056e+01 7.50419e+00 640 2020 4 2.38638e+01 3.36537e+00 335 2020 5 1.40725e+01 3.71160e+00 281 2020 6 2.41620e+01 6.48483e+00 396 2020 7 1.42609e+01 2.79710e+00 258 2020 8 1.67980e+01 2.13743e+00 267 2020 9 1.02573e+01 2.88143e+00 362 2020 10 1.09739e+01 3.19908e+00 124 2020 11 7.83493e+00 1.11871e+00 189 2020 12 3.20735e+00 3.71806e+00 525 2021 1 6.16020e+00 3.66652e+00 417 2021 2 7.48215e+00 7.34629e+00 263 2021 3 1.19855e+01 6.19127e+00 748 2021 4 1.34055e+01 2.98381e+00 333 2021 5 2.10517e+01 2.65510e+00 329 2021 6 8.71570e+00 2.36549e+00 184 2021 7 8.52176e+00 2.23752e+00 450 2021 8 6.59314e+00 2.28315e+00 134 2021 9 6.05356e+00 2.73523e+00 629 2021 10 6.14048e+00 2.62100e+00 407 2021 11 1.08826e+00 7.61645e-01 536 2021 12 2.34861e+00 1.56757e+00 1004 2022 1 4.11487e+00 2.47351e+00 388 2022 2 2.02918e+01 2.30877e+00 372 2022 3 1.54352e+01 7.97549e+00 407 2022 4 2.10438e+01 8.59372e-01 78 2022 5 2.30267e+01 2.82045e+00 377 2022 6 6.86966e+00 3.42291e+00 158 2022 7 6.85070e+00 1.15836e+00 137 2022 8 2.55106e+01 3.47216e+00 234 2022 9 9.38570e+00 9.79611e+00 455 2022 10 1.77495e+00 1.89255e+00 631 2022 11 4.76832e+00 2.91355e+00 746 2022 12 2.54209e+00 1.56943e+00 807 2023 1 2.77250e+00 2.17199e+00 818 2023 2 3.36074e+00 2.94177e+00 1152 2023 3 1.59937e+01 5.00588e+00 405 2023 4 1.84251e+01 6.34978e+00 365 2023 5 1.75772e+01 6.16575e+00 256 2023 6 1.70495e+01 2.10232e+00 467 2023 7 8.50904e+00 3.95672e+00 375 2023 8 1.76562e+01 4.85694e+00 136 2023 9 1.99507e+01 3.11661e+00 185 2023 10 1.93112e+01 1.67191e+00 77 2023 11 1.63217e+01 5.46861e+00 278 2023 12 1.94226e+01 3.36369e+00 95 2024 1 1.41749e+01 1.40613e-01 10 2024 2 1.49523e+01 2.53646e+00 206 2024 3 2.32032e+01 6.30806e+00 205 2024 4 nan nan 0