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 5.10679e+01 1.20335e+01 62 2002 8 6.14570e+01 1.99080e+01 106 2002 9 4.97648e+01 1.07835e+01 54 2002 10 5.53101e+01 1.19699e+01 296 2002 11 4.28149e+01 1.04502e+01 316 2002 12 3.93995e+01 1.01667e+01 315 2003 1 3.44987e+01 8.02198e+00 506 2003 2 3.79599e+01 8.77758e+00 381 2003 3 4.10228e+00 4.57816e+00 12 2003 4 1.78425e+01 9.80650e+00 137 2003 5 nan nan 0 2003 6 1.87165e+01 9.71793e+00 33 2003 7 2.46308e+01 9.56369e+00 46 2003 8 1.07720e+00 2.12346e+00 12 2003 9 4.43031e+01 2.14433e+01 111 2003 10 4.10078e+01 1.61798e+01 283 2003 11 5.13427e+01 1.37830e+01 455 2003 12 3.79292e+01 8.42862e+00 401 2004 1 4.42184e+01 9.21555e+00 428 2004 2 3.44829e+01 8.93443e+00 100 2004 3 2.80344e+01 1.45118e+01 363 2004 4 3.95482e+01 1.01754e+01 239 2004 5 4.50371e+01 1.38991e+01 109 2004 6 5.67846e+01 1.31860e+01 153 2004 7 4.18200e+01 2.60478e+01 7 2004 8 5.40872e+01 6.78010e+00 136 2004 9 3.75634e+01 2.15208e+01 15 2004 10 2.35893e+01 1.42636e+01 8 2004 11 1.22177e+01 1.62808e+01 66 2004 12 3.47320e+01 8.91381e+00 144 2005 1 3.12397e+01 1.39621e+01 238 2005 2 3.70649e+01 1.49140e+01 205 2005 3 3.83540e+01 8.14560e+00 253 2005 4 2.39308e+01 9.84128e+00 107 2005 5 2.90983e+01 1.61412e+01 33 2005 6 4.21994e+01 1.30330e+01 125 2005 7 3.75676e+01 9.78874e+00 42 2005 8 nan nan 0 2005 9 5.12353e+01 8.11386e+00 78 2005 10 4.46573e+01 1.70193e+01 241 2005 11 4.88010e+01 7.50648e+00 331 2005 12 3.68190e+01 1.41246e+01 368 2006 1 3.28046e+01 7.30476e+00 274 2006 2 2.57275e+01 8.08283e+00 423 2006 3 2.86294e+01 1.07932e+01 449 2006 4 4.86476e+01 6.73101e+00 131 2006 5 4.97670e+01 1.36313e+01 110 2006 6 5.27206e+01 9.56078e+00 67 2006 7 4.87316e+01 1.48658e+01 21 2006 8 5.49205e+01 3.70277e+01 16 2006 9 4.70645e+01 1.57721e+01 223 2006 10 4.87878e+01 1.15878e+01 301 2006 11 4.77946e+01 8.03506e+00 358 2006 12 5.07574e+01 1.36668e+01 229 2007 1 4.45359e+01 8.77732e+00 268 2007 2 4.62466e+01 7.96095e+00 343 2007 3 5.17344e+01 6.91643e+00 592 2007 4 5.27630e+01 9.42204e+00 336 2007 5 5.78407e+01 5.37423e+00 84 2007 6 5.65297e+01 5.13911e+00 39 2007 7 4.99127e+01 1.73319e+01 81 2007 8 5.59958e+01 1.25160e+01 119 2007 9 5.86018e+01 1.78928e+01 74 2007 10 6.12856e+01 6.26058e+00 199 2007 11 5.24702e+01 1.09899e+01 523 2007 12 5.87968e+01 5.17917e+00 260 2008 1 4.60250e+01 1.02838e+01 345 2008 2 5.22240e+01 6.17522e+00 467 2008 3 4.73625e+01 4.71503e+00 342 2008 4 4.05325e+01 6.31862e+00 225 2008 5 5.23770e+01 1.35531e+01 163 2008 6 5.97648e+01 1.34728e+01 77 2008 7 5.19399e+01 1.28873e+01 73 2008 8 3.39622e+01 1.05611e+01 2 2008 9 4.15164e+01 1.80727e+01 83 2008 10 4.63110e+01 9.45769e+00 334 2008 11 4.22455e+01 1.06548e+01 373 2008 12 4.38239e+01 8.29780e+00 397 2009 1 4.15082e+01 9.21265e+00 284 2009 2 4.51011e+01 7.51084e+00 564 2009 3 5.20377e+01 6.36840e+00 311 2009 4 4.89702e+01 1.26224e+01 164 2009 5 2.67337e+01 1.22317e+01 105 2009 6 4.32373e+01 1.09862e+01 20 2009 7 4.27687e+01 1.20350e+01 31 2009 8 4.21698e+01 1.83205e+01 106 2009 9 4.02126e+01 1.19953e+01 176 2009 10 4.54137e+01 1.36297e+01 367 2009 11 4.77961e+01 9.85581e+00 287 2009 12 4.25461e+01 8.35691e+00 149 2010 1 3.82258e+01 4.31191e+00 407 2010 2 2.31957e+01 1.41775e+01 257 2010 3 1.92539e+01 9.71229e+00 342 2010 4 2.98227e+01 1.36533e+01 287 2010 5 3.06949e+01 1.02073e+01 100 2010 6 3.02422e+01 1.52897e+01 76 2010 7 5.01722e+01 1.09351e+01 43 2010 8 nan nan 0 2010 9 3.11898e+01 2.28903e+01 169 2010 10 4.28573e+01 1.64467e+01 551 2010 11 4.90585e+01 1.25887e+01 512 2010 12 4.19825e+01 1.05370e+01 370 2011 1 4.08610e+01 1.23214e+01 345 2011 2 4.79910e+01 1.12401e+01 208 2011 3 4.46178e+01 8.22600e+00 530 2011 4 4.83851e+01 8.10594e+00 295 2011 5 5.22637e+01 1.46472e+01 250 2011 6 5.04318e+01 1.23610e+01 46 2011 7 4.50507e+01 1.58673e+01 48 2011 8 4.97518e+01 1.80728e+01 63 2011 9 6.02216e+01 1.71821e+01 308 2011 10 5.00948e+01 1.14783e+01 394 2011 11 5.47912e+01 7.17398e+00 482 2011 12 5.24821e+01 6.32074e+00 377 2012 1 4.60704e+01 8.43164e+00 478 2012 2 3.60564e+01 8.22934e+00 108 2012 3 5.52622e+01 1.12558e+01 486 2012 4 5.81994e+01 9.89207e+00 322 2012 5 6.40577e+01 1.26936e+01 207 2012 6 5.86263e+01 2.02638e+01 18 2012 7 nan nan 0 2012 8 7.15387e+00 5.46479e+00 3 2012 9 2.76305e+01 1.31966e+01 63 2012 10 2.83530e+01 1.65136e+01 86 2012 11 3.80487e+01 1.08730e+01 393 2012 12 4.07933e+01 1.18988e+01 221 2013 1 3.84549e+01 1.02228e+01 248 2013 2 3.95351e+01 5.83617e+00 239 2013 3 3.95052e+01 6.32271e+00 384 2013 4 4.07072e+01 1.05274e+01 277 2013 5 4.80365e+01 8.28220e+00 219 2013 6 5.25380e+01 1.34894e+01 184 2013 7 2.96425e+01 1.33923e+01 33 2013 8 2.89269e+00 4.26623e+00 4 2013 9 3.37180e+01 2.65268e+01 54 2013 10 3.53347e+01 1.41551e+01 231 2013 11 5.06984e+01 5.95805e+00 135 2013 12 5.12774e+01 6.47696e+00 350 2014 1 4.42863e+01 8.46683e+00 381 2014 2 4.22234e+01 7.09435e+00 450 2014 3 3.63790e+01 1.07247e+01 419 2014 4 1.32039e+01 1.14261e+01 41 2014 5 2.39354e+01 1.17486e+01 52 2014 6 2.34565e+01 2.53838e+01 20 2014 7 4.24564e+01 9.52926e+00 240 2014 8 5.66206e+01 8.53031e-01 42 2014 9 4.71639e+01 1.20966e+01 81 2014 10 4.69938e+01 1.31134e+01 631 2014 11 4.30281e+01 9.58678e+00 446 2014 12 4.75580e+01 9.58159e+00 265 2015 1 4.80553e+01 9.14034e+00 349 2015 2 4.09294e+01 8.85746e+00 475 2015 3 4.21252e+01 7.47885e+00 333 2015 4 4.53913e+01 9.36150e+00 116 2015 5 5.15666e+01 1.00141e+01 169 2015 6 4.81840e+01 1.09017e+01 95 2015 7 3.74124e+01 4.17441e+00 15 2015 8 4.08372e+01 2.02797e+00 23 2015 9 3.50048e+01 1.25268e+01 109 2015 10 5.48098e+01 1.10629e+01 253 2015 11 4.71386e+01 1.14194e+01 201 2015 12 4.80074e+01 1.16580e+01 230 2016 1 3.73007e+01 8.46831e+00 439 2016 2 3.82717e+01 1.15172e+01 625 2016 3 3.77492e+01 1.08507e+01 432 2016 4 4.43544e+01 9.37305e+00 305 2016 5 4.73864e+01 1.44323e+01 193 2016 6 5.18761e+01 1.32764e+01 259 2016 7 4.76921e+01 1.32884e+01 257 2016 8 3.24713e+01 1.50788e+01 130 2016 9 3.77712e+01 2.43832e+01 146 2016 10 4.34109e+01 1.41408e+01 227 2016 11 5.07888e+01 9.82014e+00 414 2016 12 4.79105e+01 8.99912e+00 282 2017 1 4.71279e+01 1.02137e+01 317 2017 2 4.55392e+01 4.00025e+00 478 2017 3 4.54450e+01 7.13749e+00 403 2017 4 4.75569e+01 1.49781e+01 278 2017 5 5.48273e+01 1.11533e+01 121 2017 6 4.46070e+01 1.13370e+01 70 2017 7 3.50712e+01 1.76561e+01 25 2017 8 3.25867e+01 2.11323e+01 144 2017 9 3.52386e+01 1.41359e+01 196 2017 10 3.61038e+01 1.59495e+01 329 2017 11 4.43141e+01 1.28419e+01 503 2017 12 5.40969e+01 1.03750e+01 277 2018 1 4.56556e+01 8.78638e+00 424 2018 2 4.67984e+01 2.08042e+00 273 2018 3 4.23103e+01 1.37542e+01 399 2018 4 4.85564e+01 1.40901e+01 278 2018 5 4.42094e+01 1.02602e+01 189 2018 6 3.63818e+01 1.08757e+01 153 2018 7 5.41095e+01 2.12841e+00 42 2018 8 2.86601e+01 1.39607e+01 54 2018 9 3.14091e+01 1.31061e+01 185 2018 10 4.41906e+01 1.77740e+01 340 2018 11 3.57189e+01 9.71378e+00 122 2018 12 3.74628e+01 1.20557e+01 251 2019 1 2.35165e+01 7.99948e+00 245 2019 2 4.83297e+01 2.87303e+01 142 2019 3 2.51285e+01 1.03831e+01 330 2019 4 4.23315e+01 5.75529e+00 199 2019 5 5.24799e+01 1.05628e+01 154 2019 6 3.12253e+01 9.18553e-01 13 2019 7 4.63843e+01 1.57548e+01 110 2019 8 4.51087e+01 1.77542e+01 60 2019 9 4.44706e+01 1.19928e+01 96 2019 10 5.19055e+01 1.23912e+01 295 2019 11 5.19987e+01 9.80643e+00 360 2019 12 4.89236e+01 1.00639e+01 164 2020 1 4.39747e+01 8.00818e+00 269 2020 2 4.18799e+01 8.96025e+00 322 2020 3 4.89212e+01 6.22394e+00 407 2020 4 4.86478e+01 1.16741e+01 186 2020 5 5.96101e+01 1.03878e+01 231 2020 6 3.86430e+01 1.84700e+01 144 2020 7 3.48833e+01 1.45512e+01 87 2020 8 3.32844e+01 1.86538e+01 49 2020 9 3.81979e+01 2.07676e+01 58 2020 10 2.09376e+01 1.61339e+01 120 2020 11 4.28040e+01 1.32326e+01 288 2020 12 3.73234e+01 1.50048e+01 286 2021 1 3.48815e+01 1.13172e+01 255 2021 2 3.13204e+01 1.50783e+01 345 2021 3 3.38416e+01 1.23679e+01 275 2021 4 3.65276e+01 6.62226e+00 158 2021 5 4.42612e+01 1.36993e+01 286 2021 6 5.28836e+01 7.48044e+00 65 2021 7 nan nan 0 2021 8 2.13133e+01 0.00000e+00 2 2021 9 5.49142e+01 2.78019e+01 70 2021 10 3.95561e+01 1.51833e+01 116 2021 11 3.45718e+01 1.14867e+01 393 2021 12 4.08756e+01 9.88983e+00 359 2022 1 3.60335e+01 1.03001e+01 426 2022 2 4.41824e+01 1.01321e+01 411 2022 3 3.60618e+01 1.99537e+01 416 2022 4 4.51113e+01 2.12520e+00 51 2022 5 3.58137e+01 1.42527e+01 173 2022 6 5.25371e+01 1.24938e+01 79 2022 7 6.09235e+01 6.54627e+00 57 2022 8 5.38461e+01 1.29654e+01 156 2022 9 4.89381e+01 1.26009e+01 175 2022 10 4.47881e+01 1.13864e+01 998 2022 11 5.15423e+01 1.24860e+01 281 2022 12 4.95641e+01 1.33893e+01 598 2023 1 4.77671e+01 1.04778e+01 587 2023 2 4.95746e+01 6.07933e+00 400 2023 3 5.03265e+01 1.08181e+01 414 2023 4 5.91484e+01 1.44357e+01 329 2023 5 5.44436e+01 1.35055e+01 233 2023 6 5.98681e+01 1.36563e+01 115 2023 7 3.12660e+01 1.04622e+01 65 2023 8 4.87886e+01 1.42688e+01 159 2023 9 4.05254e+01 2.51729e+01 124 2023 10 4.94596e+01 1.27945e+01 429 2023 11 4.53958e+01 1.20641e+01 522 2023 12 3.36627e+01 1.00830e+01 181 2024 1 2.69546e+01 9.95171e+00 197 2024 2 3.13717e+01 7.57048e+00 534 2024 3 2.86530e+01 1.13689e+01 275 2024 4 nan nan 0