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 2.33130e+01 9.99212e+00 261
2002  8 1.66005e+01 1.19524e+01 140
2002  9 1.76339e+01 1.14929e+01 243
2002 10 1.54769e+01 8.44485e+00 420
2002 11 1.76430e+01 8.26398e+00 165
2002 12 1.65541e+01 4.33574e+00 77
2003  1 8.41180e+00 6.42698e+00 332
2003  2 1.27836e+01 6.43015e+00 465
2003  3 1.68622e+01 7.85728e+00 567
2003  4 1.64799e+01 1.11658e+01 150
2003  5 2.71885e+01 8.34188e+00 240
2003  6 2.13169e+01 6.21368e+00 18
2003  7 2.69230e+01 1.07453e+01 87
2003  8 3.20253e+01 7.93440e+00 106
2003  9 2.67269e+01 8.02685e+00 182
2003 10 2.21408e+01 9.18174e+00 255
2003 11 1.27146e+01 5.32944e+00 65
2003 12 1.32958e+00 1.80444e+00 184
2004  1 1.25979e+01 8.09627e+00 270
2004  2 1.81041e+01 8.43485e+00 204
2004  3 2.25658e+01 1.03234e+01 327
2004  4 2.33118e+01 1.16266e+01 253
2004  5 3.29568e+01 8.21050e+00 134
2004  6 2.24669e+01 7.40348e+00 168
2004  7 2.75532e+01 8.00867e+00 167
2004  8 2.26729e+01 7.38871e+00 140
2004  9 2.35309e+01 9.71391e+00 86
2004 10 2.27796e+01 5.64916e+00 205
2004 11 1.84086e+01 7.99633e+00 257
2004 12 1.37069e+01 3.98166e+00 118
2005  1 9.35396e+00 8.13332e+00 217
2005  2 1.64401e+01 7.57337e+00 144
2005  3 1.45998e+01 9.00673e+00 327
2005  4 2.57921e+01 7.91522e+00 187
2005  5 3.69866e+01 7.53561e+00 161
2005  6 2.28713e+01 1.02192e+01 79
2005  7 1.68491e+01 1.05182e+01 333
2005  8 2.06356e+01 9.09461e+00 196
2005  9 2.27425e+01 7.12644e+00 224
2005 10 1.25500e+01 6.78384e+00 153
2005 11 3.15271e+00 3.23562e+00 142
2005 12 5.51158e+00 2.86815e+00 994
2006  1 4.87531e+00 3.21597e+00 322
2006  2 9.65696e+00 4.55049e+00 370
2006  3 1.22974e+01 4.51319e+00 482
2006  4 2.08647e+01 1.02301e+01 303
2006  5 2.94888e+01 8.83888e+00 363
2006  6 1.71408e+01 5.96938e+00 434
2006  7 1.39412e+01 5.84023e+00 167
2006  8 2.70348e+01 5.75092e+00 167
2006  9 1.76606e+01 7.68082e+00 203
2006 10 1.57567e+01 8.57264e+00 331
2006 11 1.58983e+01 6.83886e+00 96
2006 12 6.97174e+00 5.81035e+00 67
2007  1 1.07592e+01 6.07339e+00 226
2007  2 1.32200e+01 6.46273e+00 137
2007  3 1.55605e+01 9.57214e+00 283
2007  4 1.85588e+01 1.07081e+01 123
2007  5 2.88066e+01 7.29629e+00 108
2007  6 2.28985e+01 1.06673e+01 78
2007  7 1.62806e+01 1.01198e+01 328
2007  8 2.23059e+01 6.28997e+00 147
2007  9 2.21460e+01 1.17852e+01 103
2007 10 2.15762e+01 9.95693e+00 118
2007 11 1.99169e+01 6.40501e+00 195
2007 12 1.34617e+01 4.46304e+00 182
2008  1 1.68280e+01 8.27222e+00 133
2008  2 1.42089e+01 8.45849e+00 197
2008  3 1.25756e+01 8.10260e+00 160
2008  4 2.33665e+01 1.08340e+01 227
2008  5 2.88361e+01 1.06236e+01 284
2008  6 3.03076e+01 1.28985e+01 238
2008  7 1.34174e+01 7.13969e+00 263
2008  8 2.67634e+01 1.04710e+01 169
2008  9 2.29971e+01 9.69198e+00 59
2008 10 1.88022e+01 9.78235e+00 146
2008 11 2.01140e+01 7.04135e+00 165
2008 12 1.17784e+01 6.77049e+00 222
2009  1 1.38213e+01 5.12139e+00 294
2009  2 1.01282e+01 5.12581e+00 320
2009  3 1.53174e+01 9.60275e+00 144
2009  4 2.21300e+01 8.31566e+00 122
2009  5 2.17941e+01 1.12947e+01 235
2009  6 3.00357e+01 6.25697e+00 178
2009  7 2.46630e+01 1.36593e+01 43
2009  8 1.94407e+01 1.10308e+01 117
2009  9 1.80902e+01 8.54333e+00 177
2009 10 2.10203e+01 9.70057e+00 179
2009 11 1.87897e+01 8.20072e+00 209
2009 12 1.43374e+01 5.98649e+00 106
2010  1 1.09884e+01 6.09735e+00 67
2010  2 6.67326e+00 7.38556e+00 148
2010  3 7.88619e+00 2.49170e+00 90
2010  4 1.45796e+01 4.57141e+00 151
2010  5 2.54192e+01 1.13568e+01 318
2010  6 2.84944e+01 6.97402e+00 256
2010  7 2.54176e+01 1.46985e+01 121
2010  8 2.77533e+01 8.55007e+00 197
2010  9 2.89383e+01 1.01447e+01 190
2010 10 1.55683e+01 5.44495e+00 272
2010 11 1.47436e+01 7.39902e+00 222
2010 12 1.71546e+01 7.05502e+00 178
2011  1 6.45875e+00 5.08566e+00 152
2011  2 1.15495e+01 3.90596e+00 544
2011  3 1.26895e+01 3.88332e+00 345
2011  4 1.67954e+01 6.26771e+00 527
2011  5 2.34873e+01 9.14804e+00 205
2011  6 2.64279e+01 1.22107e+01 165
2011  7 3.18675e+01 7.77269e+00 245
2011  8 2.70604e+01 5.40036e-01 2
2011  9 3.13682e+01 5.85224e+00 149
2011 10 1.74032e+01 7.10979e+00 96
2011 11 1.56028e+01 4.97828e+00 212
2011 12 1.22139e+01 8.22929e+00 214
2012  1 1.12413e+01 7.94571e+00 312
2012  2 1.72721e+01 7.38873e+00 203
2012  3 2.47795e+01 9.80159e+00 258
2012  4 2.34072e+01 1.16247e+01 323
2012  5 3.11079e+01 8.21168e+00 189
2012  6 1.59463e+01 4.60584e+00 111
2012  7 2.47333e+01 7.25260e+00 85
2012  8 2.32499e+01 9.48829e+00 115
2012  9 1.75814e+01 5.97386e+00 444
2012 10 1.20391e+01 8.50775e+00 259
2012 11 1.24328e+01 8.23043e+00 300
2012 12 1.28403e+01 6.89347e+00 113
2013  1 1.07140e+01 5.79736e+00 226
2013  2 1.69427e+01 6.68131e+00 139
2013  3 2.52723e+01 1.20680e+01 180
2013  4 1.73091e+01 1.13303e+01 162
2013  5 2.65593e+01 1.28654e+01 294
2013  6 2.55262e+01 9.56776e+00 155
2013  7 1.31521e+01 8.61694e+00 177
2013  8 2.72053e+01 5.87643e+00 87
2013  9 2.54816e+01 9.70039e+00 112
2013 10 2.32780e+01 5.87112e+00 457
2013 11 1.52115e+01 7.99930e+00 246
2013 12 9.87577e+00 6.21900e+00 111
2014  1 2.31123e+01 4.68837e+00 321
2014  2 1.81174e+01 7.86285e+00 233
2014  3 2.39792e+01 6.65651e+00 452
2014  4 2.58231e+01 7.75996e+00 327
2014  5 3.03020e+01 1.05028e+01 79
2014  6 2.89620e+01 7.54100e+00 278
2014  7 2.89931e+01 1.23363e+01 184
2014  8 3.66862e+01 6.74286e+00 334
2014  9 2.03108e+01 7.56583e+00 19
2014 10 2.00536e+01 6.04605e+00 112
2014 11 1.55308e+01 5.22917e+00 135
2014 12 1.69311e+01 4.84549e+00 168
2015  1 1.50098e+01 6.00084e+00 163
2015  2 1.65881e+01 5.53692e+00 37
2015  3 1.74365e+01 1.14067e+01 305
2015  4 2.66173e+01 9.42873e+00 317
2015  5 2.41141e+01 1.16547e+01 193
2015  6 3.45803e+01 5.14823e+00 60
2015  7 2.50426e+01 7.77502e+00 175
2015  8 2.45621e+01 8.04980e+00 37
2015  9 3.24041e+01 5.24983e+00 140
2015 10 2.01287e+01 8.58591e+00 137
2015 11 1.89140e+01 4.63326e+00 92
2015 12 1.06695e+01 5.98183e+00 40
2016  1 1.30021e+01 6.22020e+00 14
2016  2 8.85691e+00 7.47188e+00 130
2016  3 2.00716e+01 9.97028e+00 141
2016  4 1.82605e+01 9.95112e+00 452
2016  5 2.89585e+01 7.42457e+00 337
2016  6 2.43512e+01 5.88563e+00 248
2016  7 1.68745e+01 5.48547e+00 234
2016  8 3.27086e+01 1.06702e+01 83
2016  9 2.19902e+01 6.41359e+00 406
2016 10 2.25327e+01 8.13762e+00 128
2016 11 1.22388e+01 6.35183e+00 106
2016 12 1.52999e+01 7.79150e+00 44
2017  1 9.37886e+00 8.37722e+00 206
2017  2 1.28646e+01 6.76775e+00 325
2017  3 1.80265e+01 1.28423e+01 330
2017  4 2.82800e+01 8.31319e+00 226
2017  5 2.98399e+01 1.24588e+01 242
2017  6 3.09066e+01 1.09396e+01 115
2017  7 2.73176e+01 1.03925e+01 245
2017  8 2.45815e+01 8.46950e+00 223
2017  9 1.33303e+01 1.49349e+01 379
2017 10 7.68638e+00 5.35235e+00 25
2017 11 7.68352e+00 5.31967e+00 730
2017 12 9.24142e+00 4.59838e+00 980
2018  1 7.97845e+00 3.34323e+00 219
2018  2 5.94422e+00 4.34301e+00 251
2018  3 1.03380e+01 7.76685e+00 205
2018  4 2.06922e+01 1.07666e+01 359
2018  5 1.79506e+01 8.97230e+00 49
2018  6 1.97901e+01 8.33247e+00 190
2018  7 2.86468e+01 1.31378e+01 235
2018  8 7.69882e+00 3.40806e+00 191
2018  9 1.63199e+01 1.00456e+01 106
2018 10 1.53432e+01 7.76323e+00 79
2018 11 1.68177e+01 5.12303e+00 90
2018 12 1.28743e+01 6.40823e+00 241
2019  1 1.22419e+01 6.28590e+00 139
2019  2 1.47602e+01 9.15946e+00 122
2019  3 1.91005e+01 9.78584e+00 309
2019  4 2.33084e+01 1.01454e+01 175
2019  5 2.02932e+01 6.30733e+00 397
2019  6 2.79092e+01 1.21918e+01 361
2019  7 2.72078e+01 8.48380e+00 183
2019  8 1.77483e+01 1.25395e+01 220
2019  9 1.97867e+01 9.07227e+00 87
2019 10 1.45055e+01 6.29015e+00 167
2019 11 1.37685e+01 8.61520e+00 287
2019 12 1.75183e+01 5.84184e+00 151
2020  1 1.21414e+01 7.51168e+00 175
2020  2 9.91112e+00 6.69022e+00 179
2020  3 2.13401e+01 9.82904e+00 406
2020  4 2.50366e+01 8.47573e+00 349
2020  5 1.78317e+01 1.36785e+01 358
2020  6 1.37111e+01 8.09795e+00 327
2020  7 2.99579e+01 1.38241e+01 37
2020  8 2.65247e+01 1.20406e+01 267
2020  9 9.71734e+00 8.98061e+00 328
2020 10 1.00571e+01 7.35878e+00 294
2020 11 6.54770e+00 7.28378e+00 135
2020 12 1.09425e+01 6.29110e+00 272
2021  1 1.76651e+01 4.81383e+00 360
2021  2 1.25067e+01 5.28719e+00 467
2021  3 1.99753e+01 9.06766e+00 215
2021  4 1.82778e+01 6.82224e+00 205
2021  5 2.13201e+01 9.60341e+00 283
2021  6 2.06429e+01 8.39682e+00 131
2021  7 1.67368e+01 1.34309e+01 149
2021  8 3.01607e+01 1.49856e+01 34
2021  9 2.03668e+01 9.61943e+00 313
2021 10 2.41050e+01 3.92194e+00 85
2021 11 1.08615e+01 4.89184e+00 134
2021 12 1.45242e+01 5.24721e+00 126
2022  1 1.21106e+01 5.50292e+00 191
2022  2 1.57189e+01 1.03156e+01 246
2022  3 2.13747e+01 9.70844e+00 218
2022  4 1.75257e+01 1.21629e+01 45
2022  5 1.40909e+01 8.73804e+00 122
2022  6 2.30378e+01 1.17142e+01 153
2022  7 3.02439e+01 7.16306e+00 78
2022  8 2.72671e+01 8.35463e+00 174
2022  9 2.47258e+01 1.13015e+01 209
2022 10 1.59787e+01 7.92409e+00 160
2022 11 1.82202e+01 6.83789e+00 177
2022 12 1.58621e+01 4.76358e+00 188
2023  1 1.19212e+01 7.18754e+00 330
2023  2 1.10885e+01 7.38031e+00 362
2023  3 1.70757e+01 1.00152e+01 393
2023  4 2.40883e+01 1.23608e+01 243
2023  5 2.69390e+01 1.01762e+01 122
2023  6 1.26449e+01 4.98015e+00 230
2023  7 2.13806e+01 8.40434e+00 168
2023  8 2.28521e+01 1.24553e+01 111
2023  9 1.80923e+01 7.99382e+00 90
2023 10 1.67025e+01 8.09920e+00 95
2023 11 1.36143e+01 8.99915e+00 244
2023 12 1.34974e+01 5.00070e+00 188
2024  1 2.08974e+01 6.39686e+00 104
2024  2 1.71923e+01 8.28556e+00 283
2024  3 2.20914e+01 7.60569e+00 396
2024  4 3.02716e+01 1.13384e+01 16