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 8.52664e+00 4.08736e+00 127 2002 8 7.71324e+00 3.82000e+00 293 2002 9 6.94938e+00 2.39581e+00 109 2002 10 7.38241e+00 2.78982e+00 330 2002 11 1.02805e+01 3.91939e+00 482 2002 12 9.26034e+00 3.98177e+00 504 2003 1 1.14819e+01 7.31985e+00 632 2003 2 8.08536e+00 3.04711e+00 451 2003 3 nan nan 0 2003 4 nan nan 0 2003 5 2.65101e+01 1.31326e+01 10 2003 6 2.21281e+01 1.10992e+01 13 2003 7 nan nan 0 2003 8 3.39437e+01 9.30921e+00 12 2003 9 1.72472e+01 1.03821e+01 105 2003 10 1.62716e+01 8.53053e+00 422 2003 11 1.45201e+01 6.84637e+00 428 2003 12 7.74742e+00 4.68699e+00 552 2004 1 7.81993e+00 2.59065e+00 555 2004 2 8.68433e+00 4.95884e+00 300 2004 3 2.43944e+01 1.02837e+01 417 2004 4 7.26987e+00 1.92012e+00 188 2004 5 7.90446e+00 2.12839e+00 301 2004 6 7.52382e+00 3.27141e+00 236 2004 7 1.27931e+01 3.63535e+00 160 2004 8 1.56570e+01 7.91303e+00 157 2004 9 nan nan 0 2004 10 nan nan 0 2004 11 nan nan 0 2004 12 2.51442e+01 1.08263e+01 197 2005 1 1.75861e+01 1.04559e+01 328 2005 2 1.58403e+01 6.86301e+00 183 2005 3 9.14806e+00 4.11426e+00 170 2005 4 1.87404e+01 5.52441e+00 15 2005 5 nan nan 0 2005 6 5.62354e+00 6.26643e+00 7 2005 7 nan nan 0 2005 8 3.76119e+01 9.81329e+00 7 2005 9 2.28546e+01 1.01566e+01 109 2005 10 8.42717e+00 3.70241e+00 493 2005 11 7.60942e+00 3.97490e+00 579 2005 12 9.16704e+00 4.54318e+00 520 2006 1 1.63624e+01 7.33662e+00 141 2006 2 2.82086e+01 1.04653e+01 134 2006 3 2.11783e+01 1.21516e+01 186 2006 4 9.26353e+00 4.11486e+00 206 2006 5 8.08003e+00 3.72211e+00 103 2006 6 7.39099e+00 1.89567e+00 92 2006 7 1.41300e+01 5.19385e+00 123 2006 8 8.56112e+00 1.18985e+00 64 2006 9 1.01858e+01 4.13239e+00 477 2006 10 6.96208e+00 2.77093e+00 453 2006 11 6.46039e+00 3.09645e+00 599 2006 12 4.80980e+00 4.25020e+00 313 2007 1 4.72470e+00 1.61633e+00 290 2007 2 5.67696e+00 3.40974e+00 573 2007 3 7.66178e+00 3.95506e+00 522 2007 4 7.98960e+00 3.78942e+00 358 2007 5 1.39133e+01 2.25936e+00 42 2007 6 5.98079e+00 1.23841e+00 76 2007 7 9.83078e+00 3.44624e+00 173 2007 8 9.17599e+00 4.54640e+00 220 2007 9 6.68378e+00 3.71238e+00 136 2007 10 5.41539e+00 1.52933e+00 224 2007 11 5.83606e+00 2.52310e+00 809 2007 12 7.79771e+00 3.95263e+00 350 2008 1 5.25609e+00 2.58100e+00 381 2008 2 8.48024e+00 2.30182e+00 605 2008 3 1.37505e+01 1.20276e+01 107 2008 4 3.16856e+01 1.15237e+01 23 2008 5 1.12458e+01 2.23121e+00 123 2008 6 1.25391e+01 4.31356e+00 189 2008 7 9.69414e+00 4.52734e+00 259 2008 8 1.11135e+01 2.53145e+00 64 2008 9 2.76466e+01 8.57493e+00 77 2008 10 1.52938e+01 7.11017e+00 449 2008 11 7.55360e+00 3.31569e+00 804 2008 12 1.48430e+01 7.73557e+00 526 2009 1 1.41082e+01 8.04606e+00 518 2009 2 7.35835e+00 2.81100e+00 674 2009 3 7.20599e+00 3.46561e+00 451 2009 4 9.67982e+00 6.43531e+00 137 2009 5 1.68238e+01 5.23726e+00 64 2009 6 8.49883e+00 1.57595e+00 57 2009 7 nan nan 0 2009 8 2.68277e+01 8.63319e+00 155 2009 9 1.65699e+01 7.10946e+00 299 2009 10 9.79903e+00 4.36965e+00 669 2009 11 5.61430e+00 1.62997e+00 448 2009 12 5.63265e+00 2.31833e+00 261 2010 1 8.99514e+00 7.70110e+00 620 2010 2 1.48814e+01 4.83435e+00 393 2010 3 1.64497e+01 8.12856e+00 297 2010 4 nan nan 0 2010 5 1.44912e+01 5.92894e+00 142 2010 6 1.60494e+01 7.65326e+00 261 2010 7 2.14052e+01 1.15713e+01 89 2010 8 2.45996e+01 1.11153e+01 27 2010 9 1.36010e+01 7.99447e+00 200 2010 10 8.08595e+00 3.57355e+00 1010 2010 11 6.66403e+00 2.37607e+00 746 2010 12 5.31105e+00 2.58257e+00 570 2011 1 5.41525e+00 2.77532e+00 488 2011 2 8.15107e+00 9.40651e+00 568 2011 3 8.72059e+00 5.75027e+00 605 2011 4 9.81444e+00 4.52875e+00 386 2011 5 6.77773e+00 4.05965e+00 344 2011 6 8.00502e+00 2.61644e+00 87 2011 7 8.51792e+00 3.48736e+00 231 2011 8 9.08812e+00 7.24461e+00 151 2011 9 5.60540e+00 1.69727e+00 460 2011 10 5.86778e+00 2.90227e+00 629 2011 11 5.47634e+00 2.80095e+00 741 2011 12 5.09375e+00 1.97774e+00 670 2012 1 5.38468e+00 3.19646e+00 755 2012 2 4.13273e+00 1.62005e+00 116 2012 3 1.07866e+01 8.42526e+00 472 2012 4 8.12245e+00 6.91531e+00 460 2012 5 6.64457e+00 2.41173e+00 237 2012 6 nan nan 0 2012 7 nan nan 0 2012 8 8.05445e-01 0.00000e+00 1 2012 9 2.43464e+01 1.21088e+01 85 2012 10 nan nan 0 2012 11 7.58586e+00 2.74110e+00 412 2012 12 7.02987e+00 2.07886e+00 221 2013 1 6.59377e+00 3.38106e+00 324 2013 2 6.12722e+00 1.52355e+00 309 2013 3 7.89499e+00 6.47874e+00 304 2013 4 nan nan 0 2013 5 2.06694e+01 1.11429e+01 87 2013 6 4.04209e+01 1.05782e+00 6 2013 7 nan nan 0 2013 8 nan nan 0 2013 9 8.36325e+00 1.27468e+01 10 2013 10 1.68789e+01 9.38177e+00 414 2013 11 1.00632e+01 3.60308e+00 168 2013 12 9.77290e+00 5.51116e+00 363 2014 1 8.75502e+00 3.42738e+00 144 2014 2 1.25272e+01 5.83971e+00 229 2014 3 1.87625e+01 7.70252e+00 239 2014 4 nan nan 0 2014 5 nan nan 0 2014 6 1.45860e+01 4.16796e+00 38 2014 7 2.18311e+01 1.22422e+01 148 2014 8 1.51395e+01 3.68507e+00 114 2014 9 1.70718e+01 7.48459e+00 13 2014 10 1.83064e+01 9.90405e+00 762 2014 11 6.95097e+00 3.41356e+00 595 2014 12 9.48657e+00 8.02067e+00 370 2015 1 1.29362e+01 8.28299e+00 454 2015 2 1.65484e+01 1.16533e+01 244 2015 3 2.49128e+01 1.02599e+01 125 2015 4 2.95302e+01 7.54648e+00 56 2015 5 1.64436e+01 8.90404e+00 266 2015 6 1.02097e+01 4.77468e+00 142 2015 7 1.55099e+01 1.04159e+01 20 2015 8 nan nan 0 2015 9 2.33155e+01 9.48206e+00 93 2015 10 1.28013e+01 8.07164e+00 374 2015 11 1.28141e+01 9.34367e+00 234 2015 12 1.03154e+01 4.36611e+00 411 2016 1 8.87664e+00 3.16540e+00 302 2016 2 1.57492e+01 9.57746e+00 307 2016 3 1.99326e+01 8.80585e+00 217 2016 4 1.46819e+01 2.79110e+00 133 2016 5 1.93643e+01 8.70202e+00 152 2016 6 1.05593e+01 3.41335e+00 270 2016 7 1.15699e+01 4.08426e+00 300 2016 8 1.45689e+01 7.98730e+00 180 2016 9 2.78226e+01 1.03630e+01 103 2016 10 9.02183e+00 2.69836e+00 455 2016 11 7.21606e+00 3.09790e+00 569 2016 12 6.64947e+00 2.78381e+00 475 2017 1 6.01435e+00 2.21619e+00 263 2017 2 2.45917e+01 1.04679e+01 300 2017 3 1.13079e+01 5.51251e+00 615 2017 4 7.93598e+00 2.84580e+00 379 2017 5 9.07308e+00 4.04266e+00 124 2017 6 7.72268e+00 1.92320e+00 28 2017 7 1.09687e+01 0.00000e+00 1 2017 8 2.90323e+01 1.08370e+01 70 2017 9 1.05657e+01 9.74700e+00 64 2017 10 1.53316e+01 1.67765e+00 50 2017 11 1.42032e+01 6.90355e+00 770 2017 12 8.36492e+00 3.66889e+00 427 2018 1 5.98640e+00 1.62106e+00 444 2018 2 1.40153e+01 8.11506e+00 342 2018 3 9.22851e+00 4.57398e+00 485 2018 4 1.05422e+01 2.89676e+00 222 2018 5 1.04698e+01 5.54469e+00 152 2018 6 2.74836e+01 8.14702e+00 16 2018 7 nan nan 0 2018 8 1.57153e+00 2.05131e+00 6 2018 9 2.46314e+01 8.41297e+00 83 2018 10 1.28313e+01 6.12623e+00 611 2018 11 8.25909e+00 2.01053e+00 237 2018 12 1.82011e+01 1.09283e+01 278 2019 1 2.61043e+01 7.78778e+00 72 2019 2 nan nan 0 2019 3 2.44406e+01 8.85762e+00 121 2019 4 1.68055e+01 1.00038e+01 173 2019 5 1.07436e+01 2.45184e+00 159 2019 6 7.92285e+00 1.17272e+00 77 2019 7 5.93382e+00 6.97892e-01 12 2019 8 2.83751e+01 9.29111e+00 54 2019 9 9.87677e+00 3.01583e+00 229 2019 10 9.05711e+00 3.96966e+00 337 2019 11 6.20851e+00 2.27712e+00 580 2019 12 7.05927e+00 3.71192e+00 187 2020 1 7.92887e+00 5.37617e+00 243 2020 2 7.92361e+00 2.77054e+00 160 2020 3 1.73504e+01 1.26708e+01 160 2020 4 1.83618e+01 2.10180e+00 4 2020 5 2.01234e+01 8.67182e+00 119 2020 6 3.26656e+01 6.75297e+00 25 2020 7 nan nan 0 2020 8 2.42135e+01 5.34149e+00 71 2020 9 nan nan 0 2020 10 1.78006e+01 1.08581e+01 247 2020 11 1.07563e+01 5.22161e+00 469 2020 12 7.43217e+00 3.38106e+00 490 2021 1 6.58384e+00 1.59026e+00 135 2021 2 2.27465e+01 1.01507e+01 213 2021 3 3.26815e+01 1.08574e+01 63 2021 4 3.67072e+01 2.42403e+00 3 2021 5 1.92586e+01 7.96665e+00 133 2021 6 1.03631e+01 3.55013e+00 86 2021 7 9.92645e+00 2.76369e+00 13 2021 8 nan nan 0 2021 9 nan nan 0 2021 10 2.20856e+01 1.46633e+01 75 2021 11 1.21336e+01 7.23303e+00 507 2021 12 1.13621e+01 6.31448e+00 439 2022 1 1.28385e+01 4.71433e+00 325 2022 2 1.02164e+01 3.45304e+00 561 2022 3 1.11666e+01 4.65729e+00 425 2022 4 nan nan 0 2022 5 2.40109e+01 6.46913e+00 137 2022 6 1.50619e+01 9.36869e+00 220 2022 7 1.60348e+01 1.09690e+01 166 2022 8 1.96564e+01 6.77563e+00 82 2022 9 1.46694e+01 4.83262e+00 152 2022 10 7.23742e+00 3.51331e+00 1039 2022 11 1.13194e+01 5.40413e+00 362 2022 12 8.85242e+00 6.45562e+00 493 2023 1 6.98662e+00 3.47732e+00 568 2023 2 1.13350e+01 8.91340e+00 370 2023 3 2.17490e+01 1.06408e+01 237 2023 4 1.52980e+01 9.26953e+00 320 2023 5 1.36656e+01 2.81315e+00 113 2023 6 1.46973e+01 7.49259e+00 184 2023 7 1.31078e+01 9.76627e+00 170 2023 8 9.28913e+00 7.91773e+00 72 2023 9 3.52946e+01 1.17761e+01 69 2023 10 1.48803e+01 8.53758e+00 476 2023 11 9.43905e+00 3.80281e+00 400 2023 12 1.52328e+01 1.14200e+01 266 2024 1 4.34549e+01 2.04341e+00 6 2024 2 2.60674e+01 1.11188e+01 258 2024 3 1.99758e+01 7.94934e+00 213 2024 4 nan nan 0