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 1.01215e+01 3.89426e+00 248 2002 8 1.67665e+01 4.30108e+00 479 2002 9 9.92026e+00 3.93829e+00 405 2002 10 5.81612e+00 1.05518e+00 209 2002 11 6.25831e+00 7.35363e+00 48 2002 12 1.69482e+00 2.64501e-01 47 2003 1 nan nan 0 2003 2 nan nan 0 2003 3 2.29064e+00 1.77848e-01 18 2003 4 4.33751e+00 6.49216e-01 159 2003 5 6.73946e+00 2.14797e+00 145 2003 6 4.89475e+00 9.65399e-01 162 2003 7 5.08786e+00 3.11186e+00 408 2003 8 1.37109e+01 7.85038e+00 380 2003 9 1.08234e+01 2.93854e+00 175 2003 10 2.27835e+00 9.11384e-01 176 2003 11 2.21707e+00 6.52909e-01 182 2003 12 2.63837e+00 9.78806e-01 211 2004 1 nan nan 0 2004 2 nan nan 0 2004 3 2.88735e+00 3.00575e-01 14 2004 4 8.94567e+00 1.44110e+00 212 2004 5 9.18429e+00 3.07411e+00 222 2004 6 9.73217e+00 2.38384e+00 108 2004 7 1.57838e+01 8.72477e+00 71 2004 8 1.27172e+01 6.26642e+00 175 2004 9 1.22028e+01 3.51439e+00 530 2004 10 8.02376e+00 3.60849e+00 351 2004 11 3.42110e+00 1.35349e+00 170 2004 12 2.71539e+00 8.00213e-01 176 2005 1 nan nan 0 2005 2 nan nan 0 2005 3 nan nan 0 2005 4 1.01848e+01 4.60663e+00 239 2005 5 5.03569e+00 2.13173e+00 118 2005 6 4.57741e+00 1.56149e+00 69 2005 7 1.47184e+01 1.42812e+01 262 2005 8 1.55329e+01 6.98598e+00 256 2005 9 1.23549e+01 3.13574e+00 212 2005 10 6.69738e+00 2.17307e+00 211 2005 11 3.90718e+00 9.98321e-01 148 2005 12 1.77476e+00 4.22279e-01 16 2006 1 2.50953e+00 3.78822e-01 54 2006 2 nan nan 0 2006 3 6.68306e+00 1.73465e+00 265 2006 4 1.22990e+01 4.55120e+00 233 2006 5 6.83504e+00 1.36216e+00 108 2006 6 1.45768e+01 1.26256e+01 212 2006 7 2.01749e+01 1.54147e+01 207 2006 8 1.59904e+01 4.75858e+00 352 2006 9 1.22993e+01 6.40778e+00 132 2006 10 7.72403e+00 2.92850e+00 105 2006 11 2.71395e+00 7.14751e-01 139 2006 12 2.92465e+00 9.36657e-01 53 2007 1 nan nan 0 2007 2 nan nan 0 2007 3 8.40394e+00 1.27236e+00 54 2007 4 7.56056e+00 8.93263e-01 113 2007 5 1.25717e+01 4.40597e+00 275 2007 6 1.41195e+01 7.93743e+00 298 2007 7 1.85870e+01 7.58867e+00 231 2007 8 1.23363e+01 2.55204e+00 193 2007 9 9.52234e+00 2.36341e+00 279 2007 10 5.94708e+00 1.82557e+00 299 2007 11 3.02393e+00 1.00991e+00 83 2007 12 2.18163e+00 2.83942e-01 29 2008 1 nan nan 0 2008 2 nan nan 0 2008 3 nan nan 0 2008 4 7.17255e+00 3.85069e+00 242 2008 5 7.04316e+00 1.86996e+00 98 2008 6 4.22251e+00 1.15635e+00 58 2008 7 7.90131e+00 5.01984e+00 264 2008 8 1.70469e+01 1.19407e+01 341 2008 9 1.18119e+01 4.34042e+00 365 2008 10 9.01598e+00 2.91971e+00 294 2008 11 4.01014e+00 1.36545e+00 165 2008 12 nan nan 0 2009 1 nan nan 0 2009 2 nan nan 0 2009 3 6.48633e+00 1.31159e+00 5 2009 4 1.01535e+01 1.99925e+00 240 2009 5 1.21080e+01 4.89952e+00 218 2009 6 1.77299e+01 1.15399e+01 132 2009 7 2.02954e+01 1.95946e+01 107 2009 8 2.05204e+01 1.44416e+01 184 2009 9 1.51683e+01 1.04676e+01 458 2009 10 1.30959e+01 3.48813e+00 70 2009 11 3.50725e+00 1.09009e+00 234 2009 12 2.14193e+00 5.53730e-01 63 2010 1 nan nan 0 2010 2 nan nan 0 2010 3 6.82702e+00 2.21317e+00 183 2010 4 7.13343e+00 4.09184e+00 259 2010 5 5.44399e+00 2.36398e+00 332 2010 6 9.97213e+00 6.28474e+00 72 2010 7 1.13635e+01 5.01524e+00 181 2010 8 1.33257e+01 4.60276e+00 208 2010 9 5.50958e+00 2.05672e+00 255 2010 10 5.59345e+00 2.15322e+00 287 2010 11 3.08778e+00 7.85557e-01 198 2010 12 nan nan 0 2011 1 nan nan 0 2011 2 nan nan 0 2011 3 nan nan 0 2011 4 4.59715e+00 9.88650e-01 99 2011 5 7.97000e+00 2.09480e+00 143 2011 6 1.65765e+01 1.36829e+01 157 2011 7 1.85458e+01 1.46174e+01 262 2011 8 1.34532e+01 6.27790e+00 396 2011 9 8.20551e+00 3.34513e+00 178 2011 10 7.92971e+00 2.17757e+00 238 2011 11 4.80922e+00 1.57554e+00 66 2011 12 3.13842e+00 9.58270e-01 168 2012 1 3.28434e+00 1.12430e+00 32 2012 2 nan nan 0 2012 3 3.79221e+00 2.04392e+00 224 2012 4 7.75847e+00 2.01978e+00 295 2012 5 6.70704e+00 4.69526e+00 255 2012 6 6.07219e+00 3.29196e+00 151 2012 7 1.00176e+01 4.24828e+00 325 2012 8 9.51341e+00 2.29612e+00 319 2012 9 6.61821e+00 3.72902e+00 290 2012 10 4.74395e+00 1.97904e+00 207 2012 11 1.32013e+00 1.90692e-01 12 2012 12 1.87260e+00 5.47217e-01 103 2013 1 nan nan 0 2013 2 nan nan 0 2013 3 3.65025e+00 9.28568e-01 62 2013 4 4.67891e+00 1.25783e+00 142 2013 5 7.14460e+00 2.05252e+00 67 2013 6 1.00386e+01 2.93992e+00 194 2013 7 1.68540e+01 1.59311e+01 91 2013 8 1.27565e+01 3.56309e+00 296 2013 9 1.31567e+01 2.43288e+00 389 2013 10 8.26466e+00 2.51388e+00 286 2013 11 2.17479e+00 9.82817e-01 45 2013 12 nan nan 0 2014 1 nan nan 0 2014 2 nan nan 0 2014 3 nan nan 0 2014 4 7.31541e+00 1.46898e+00 101 2014 5 1.01904e+01 8.15506e+00 159 2014 6 1.75892e+01 1.21203e+01 166 2014 7 8.20176e+00 5.24259e+00 95 2014 8 1.29325e+01 4.30629e+00 258 2014 9 9.45706e+00 3.26048e+00 309 2014 10 3.64161e+00 1.33989e+00 138 2014 11 5.40057e+00 4.97700e-01 56 2014 12 1.84576e+00 5.84207e-01 69 2015 1 nan nan 0 2015 2 nan nan 0 2015 3 nan nan 0 2015 4 4.22728e+00 1.61369e+00 302 2015 5 4.83113e+00 2.50915e+00 169 2015 6 5.59404e+00 2.49808e+00 252 2015 7 1.64803e+01 3.43177e+00 96 2015 8 8.41286e+00 3.01880e+00 240 2015 9 5.97466e+00 2.44377e+00 416 2015 10 4.96706e+00 2.33374e+00 110 2015 11 2.53654e+00 7.80593e-01 399 2015 12 1.79014e+00 5.67212e-01 117 2016 1 2.20956e+00 0.00000e+00 1 2016 2 nan nan 0 2016 3 5.44374e+00 1.32428e+00 131 2016 4 5.47644e+00 1.43576e+00 210 2016 5 9.77405e+00 1.00828e+01 332 2016 6 8.62280e+00 3.78318e+00 222 2016 7 1.58752e+01 4.29972e+00 136 2016 8 1.30293e+01 3.22825e+00 329 2016 9 9.39803e+00 1.74560e+00 325 2016 10 6.67849e+00 8.60160e-01 164 2016 11 4.99034e+00 1.20564e+00 281 2016 12 nan nan 0 2017 1 nan nan 0 2017 2 2.53728e+00 1.02363e+00 55 2017 3 4.48650e+00 1.57679e+00 116 2017 4 6.23814e+00 1.64174e+00 162 2017 5 9.44458e+00 1.98417e+00 106 2017 6 1.10270e+01 2.17828e+00 106 2017 7 1.39673e+01 1.09757e+01 264 2017 8 1.72939e+01 4.25079e+00 92 2017 9 1.06046e+01 3.07160e+00 214 2017 10 6.07588e+00 2.46142e+00 278 2017 11 3.20080e+00 1.10631e+00 164 2017 12 1.43658e+00 1.82198e-01 4 2018 1 nan nan 0 2018 2 nan nan 0 2018 3 5.72796e+00 1.71534e+00 321 2018 4 6.55129e+00 9.64010e-01 105 2018 5 8.02941e+00 1.88334e+00 290 2018 6 9.58388e+00 5.42032e+00 175 2018 7 1.50647e+01 1.21305e+01 348 2018 8 9.76869e+00 2.32038e+00 125 2018 9 8.67016e+00 1.99861e+00 289 2018 10 4.19805e+00 1.20323e+00 153 2018 11 2.92564e+00 0.00000e+00 4 2018 12 nan nan 0 2019 1 5.19401e+00 3.31448e+00 4 2019 2 nan nan 0 2019 3 5.86103e+00 1.22483e+00 65 2019 4 8.05863e+00 2.28068e+00 206 2019 5 1.24572e+01 4.20006e+00 196 2019 6 1.20434e+01 6.96382e+00 168 2019 7 3.11976e+01 1.99359e+01 85 2019 8 2.19222e+01 1.29312e+01 147 2019 9 1.20927e+01 4.74472e+00 155 2019 10 8.26748e+00 3.63504e+00 180 2019 11 1.83972e+00 2.11141e-01 3 2019 12 nan nan 0 2020 1 3.07755e+00 5.62005e-01 32 2020 2 nan nan 0 2020 3 7.75867e+00 2.08323e+00 212 2020 4 9.03912e+00 3.51836e+00 159 2020 5 7.27562e+00 2.67428e+00 327 2020 6 1.28477e+01 1.09727e+01 348 2020 7 2.54237e+01 2.29062e+01 222 2020 8 2.04314e+01 3.80820e+00 135 2020 9 1.22123e+01 4.33864e+00 164 2020 10 6.53237e+00 1.67085e+00 247 2020 11 2.66854e+00 1.05581e+00 365 2020 12 4.72825e+00 4.60836e-01 59 2021 1 1.90808e+00 4.62781e-01 4 2021 2 nan nan 0 2021 3 4.22075e+00 1.05687e+00 159 2021 4 3.40696e+00 1.89208e+00 260 2021 5 4.70047e+00 2.12542e+00 153 2021 6 3.82965e+00 2.00057e+00 212 2021 7 2.09262e+01 9.60329e+00 140 2021 8 1.38741e+01 3.37439e+00 80 2021 9 1.30592e+01 1.02910e+01 256 2021 10 9.03781e+00 2.46189e+00 76 2021 11 4.29212e+00 1.15277e+00 156 2021 12 5.20552e+00 9.26331e-01 70 2022 1 nan nan 0 2022 2 nan nan 0 2022 3 7.24244e+00 2.03449e+00 63 2022 4 7.71049e+00 3.59563e+00 108 2022 5 1.31479e+01 1.99589e+01 86 2022 6 1.13084e+01 1.35566e+01 109 2022 7 1.46115e+01 8.88566e+00 180 2022 8 8.05042e+00 3.21079e+00 377 2022 9 1.77189e+01 1.31369e+01 460 2022 10 7.93909e+00 4.83209e+00 756 2022 11 4.30949e+00 3.61787e+00 510 2022 12 3.67428e+00 1.54538e+00 52 2023 1 5.04969e+00 1.55575e+00 17 2023 2 3.14030e+00 1.12746e+00 70 2023 3 2.88805e+00 6.33649e-01 417 2023 4 3.01684e+00 1.32843e+00 517 2023 5 8.85066e+00 5.98607e+00 435 2023 6 1.02318e+01 1.05972e+01 243 2023 7 2.57917e+01 2.38882e+01 304 2023 8 1.63407e+01 1.23486e+01 477 2023 9 1.19113e+01 6.91897e+00 579 2023 10 1.30863e+01 7.78062e+00 277 2023 11 7.79366e+00 2.06104e+00 162 2023 12 4.35290e+00 1.80181e+00 132 2024 1 4.04649e+00 3.90283e-01 4 2024 2 4.19192e+00 3.60838e+00 245 2024 3 3.58853e+00 1.69459e+00 382 2024 4 nan nan 0