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 1.82725e+01 1.63629e+00 129 2002 8 2.19098e+01 2.50032e+00 261 2002 9 2.14376e+01 1.75999e+00 156 2002 10 1.58550e+01 3.42229e+00 634 2002 11 1.44680e+01 4.80278e+00 563 2002 12 1.38684e+01 5.15813e+00 602 2003 1 1.29803e+01 4.30805e+00 697 2003 2 1.51264e+01 4.36938e+00 423 2003 3 1.98834e+01 3.43438e+00 486 2003 4 1.83947e+01 3.65042e+00 232 2003 5 1.93520e+01 4.22452e+00 249 2003 6 nan nan 0 2003 7 1.69154e+01 1.47878e+00 55 2003 8 2.02824e+01 1.85148e+00 248 2003 9 1.68663e+01 3.33764e+00 287 2003 10 1.79824e+01 1.28340e+00 268 2003 11 1.35767e+01 7.28432e+00 304 2003 12 1.32476e+01 2.82119e+00 376 2004 1 1.43223e+01 3.47885e+00 548 2004 2 1.51015e+01 5.21621e+00 599 2004 3 1.92688e+01 3.20750e+00 532 2004 4 2.01189e+01 4.22829e+00 595 2004 5 2.43498e+01 4.69358e+00 320 2004 6 2.49572e+01 5.48370e+00 256 2004 7 1.77724e+01 2.14805e+00 128 2004 8 1.99068e+01 3.82505e+00 77 2004 9 1.22143e+01 3.88149e+00 272 2004 10 1.91761e+01 5.45728e+00 448 2004 11 1.58644e+01 4.31087e+00 268 2004 12 1.39792e+01 3.21384e+00 801 2005 1 1.46292e+01 4.40225e+00 441 2005 2 2.15355e+01 5.15967e+00 591 2005 3 2.99794e+01 8.43367e+00 591 2005 4 2.37319e+01 3.31868e+00 304 2005 5 2.39809e+01 4.47931e+00 218 2005 6 2.78441e+01 1.76958e+00 121 2005 7 1.88043e+01 3.33513e+00 68 2005 8 2.22296e+01 8.84662e-01 64 2005 9 2.46250e+01 5.42588e+00 306 2005 10 1.93293e+01 3.31358e+00 192 2005 11 1.68724e+01 3.21391e+00 705 2005 12 1.39818e+01 4.51629e+00 671 2006 1 1.24325e+01 4.95196e+00 860 2006 2 1.52042e+01 4.46118e+00 627 2006 3 1.40825e+01 5.52027e+00 485 2006 4 2.56799e+01 5.43864e+00 140 2006 5 2.28892e+01 6.45612e+00 251 2006 6 2.47799e+01 5.02584e+00 44 2006 7 1.90898e+01 3.01968e+00 233 2006 8 2.00950e+01 3.85163e+00 184 2006 9 2.52245e+01 8.02459e+00 408 2006 10 1.50685e+01 3.77436e+00 340 2006 11 1.51782e+01 4.18750e+00 540 2006 12 1.24546e+01 3.04022e+00 707 2007 1 1.44077e+01 7.56278e+00 695 2007 2 1.89606e+01 6.55736e+00 596 2007 3 1.97534e+01 3.19967e+00 128 2007 4 1.98898e+01 3.32682e+00 262 2007 5 2.20935e+01 5.35462e+00 264 2007 6 1.81866e+01 3.44573e+00 128 2007 7 1.36084e+01 1.47670e+00 184 2007 8 1.90335e+01 7.20338e-01 128 2007 9 1.69375e+01 5.99098e+00 191 2007 10 1.84951e+01 7.09952e+00 402 2007 11 1.84013e+01 8.22291e+00 448 2007 12 1.41445e+01 2.12947e+00 531 2008 1 1.41027e+01 3.85008e+00 842 2008 2 1.32311e+01 3.21574e+00 630 2008 3 1.48269e+01 6.40030e+00 448 2008 4 1.77577e+01 5.83451e+00 338 2008 5 2.61712e+01 4.42690e+00 294 2008 6 1.51267e+01 5.71417e-01 64 2008 7 2.11931e+01 4.17638e+00 307 2008 8 1.86033e+01 4.77969e+00 192 2008 9 2.03594e+01 2.68296e+00 186 2008 10 1.61085e+01 3.62658e+00 449 2008 11 1.56583e+01 3.06453e+00 689 2008 12 1.24187e+01 2.41000e+00 730 2009 1 1.78209e+01 5.47587e+00 831 2009 2 1.84298e+01 4.35195e+00 397 2009 3 1.70697e+01 4.88690e+00 243 2009 4 1.11361e+01 8.65157e+00 424 2009 5 9.57461e+00 3.08928e+00 188 2009 6 nan nan 0 2009 7 2.02216e+01 4.56512e+00 230 2009 8 1.92478e+01 1.38227e+00 192 2009 9 1.68178e+01 1.96564e+00 181 2009 10 1.66393e+01 4.57861e+00 572 2009 11 1.86296e+01 3.90354e+00 422 2009 12 1.26331e+01 3.85716e+00 638 2010 1 1.06098e+01 4.50395e+00 759 2010 2 1.53201e+01 5.72010e+00 640 2010 3 2.06892e+01 3.95225e+00 324 2010 4 1.74654e+01 2.67636e+00 176 2010 5 2.07641e+01 5.18102e+00 200 2010 6 2.05268e+01 3.62283e+00 245 2010 7 1.11432e+01 1.44735e+00 198 2010 8 1.18322e+01 2.53261e+00 289 2010 9 1.79576e+01 5.47239e+00 381 2010 10 1.73722e+01 3.47003e+00 350 2010 11 1.45868e+01 5.75680e+00 402 2010 12 1.09854e+01 1.36176e+00 257 2011 1 1.39862e+01 2.90698e+00 459 2011 2 1.98193e+01 5.36080e+00 660 2011 3 2.26989e+01 3.87954e+00 526 2011 4 2.21990e+01 3.50376e+00 534 2011 5 1.90173e+01 2.02052e+00 128 2011 6 1.79289e+01 3.51834e+00 128 2011 7 nan nan 0 2011 8 1.79524e+01 6.25072e+00 193 2011 9 1.88969e+01 3.82100e+00 253 2011 10 1.78857e+01 2.90392e+00 475 2011 11 1.47048e+01 2.01210e+00 463 2011 12 1.29407e+01 2.58387e+00 576 2012 1 1.24549e+01 3.55146e+00 689 2012 2 1.59862e+01 3.06529e+00 595 2012 3 2.23766e+01 7.22908e+00 370 2012 4 1.73851e+01 1.90635e+00 195 2012 5 2.25862e+01 4.43765e+00 139 2012 6 1.65861e+01 1.08764e+00 163 2012 7 1.52999e+01 7.70383e-01 128 2012 8 1.86322e+01 3.98011e+00 256 2012 9 2.29843e+01 7.26507e+00 135 2012 10 2.86524e+01 6.32208e+00 491 2012 11 1.43778e+01 2.79593e+00 577 2012 12 1.56029e+01 3.40279e+00 764 2013 1 1.33584e+01 6.21091e+00 745 2013 2 1.19273e+01 2.49888e+00 423 2013 3 1.91884e+01 7.43583e+00 692 2013 4 2.48755e+01 4.05437e+00 465 2013 5 2.39397e+01 4.96258e+00 304 2013 6 nan nan 0 2013 7 1.75661e+01 1.39042e+00 109 2013 8 1.60711e+01 4.07953e+00 314 2013 9 1.63144e+01 5.20173e+00 166 2013 10 1.65677e+01 6.84120e-01 132 2013 11 1.05433e+01 4.03873e+00 384 2013 12 1.09947e+01 3.68411e+00 640 2014 1 1.12757e+01 3.33802e+00 751 2014 2 1.90099e+01 3.37363e+00 615 2014 3 2.15141e+01 7.14948e+00 496 2014 4 1.98739e+01 3.83657e+00 255 2014 5 1.82948e+01 2.59019e+00 348 2014 6 1.80707e+01 3.82707e+00 312 2014 7 2.55875e+01 3.37991e+00 164 2014 8 2.25208e+01 4.80636e+00 271 2014 9 2.48994e+01 3.13968e+00 348 2014 10 2.83318e+01 6.01519e+00 455 2014 11 1.70814e+01 6.05711e+00 649 2014 12 1.67534e+01 4.20253e+00 619 2015 1 1.63573e+01 3.55735e+00 876 2015 2 1.28607e+01 5.10562e+00 656 2015 3 1.89501e+01 3.69014e+00 744 2015 4 2.06231e+01 3.44702e+00 420 2015 5 2.67316e+01 6.34095e+00 256 2015 6 1.92034e+01 1.95315e+00 118 2015 7 1.52233e+01 3.11961e+00 128 2015 8 1.74418e+01 3.22336e+00 326 2015 9 1.72241e+01 3.71731e+00 379 2015 10 1.68001e+01 6.72159e+00 465 2015 11 1.46531e+01 5.68191e+00 230 2015 12 1.29044e+01 1.61508e+00 536 2016 1 1.31969e+01 5.74181e+00 806 2016 2 1.93869e+01 2.51227e+00 320 2016 3 1.57867e+01 2.74110e+00 370 2016 4 2.60895e+01 5.41291e+00 428 2016 5 1.20452e+01 1.83261e+00 192 2016 6 2.10368e+01 4.72045e-01 64 2016 7 2.02015e+01 4.51819e+00 205 2016 8 1.90394e+01 2.96690e+00 270 2016 9 1.76031e+01 3.08269e+00 286 2016 10 1.86974e+01 4.24237e+00 289 2016 11 1.44401e+01 3.98984e+00 302 2016 12 1.08487e+01 3.89393e+00 270 2017 1 1.60198e+01 4.41829e+00 454 2017 2 1.56070e+01 4.18752e+00 869 2017 3 1.73308e+01 6.49494e+00 570 2017 4 2.65118e+01 3.62203e+00 320 2017 5 1.85586e+01 9.02112e-01 118 2017 6 2.05012e+01 5.20249e+00 374 2017 7 1.87091e+01 4.34544e+00 205 2017 8 1.37430e+01 4.14096e-01 14 2017 9 1.01131e+01 5.84199e+00 4 2017 10 1.61620e+01 2.27887e+00 398 2017 11 1.58118e+01 3.03534e+00 320 2017 12 1.39393e+01 2.07999e+00 598 2018 1 1.16836e+01 5.68376e+00 632 2018 2 1.78452e+01 3.43631e+00 430 2018 3 1.31898e+01 7.85838e+00 747 2018 4 2.01288e+01 5.94064e+00 448 2018 5 1.75233e+01 2.31257e+00 320 2018 6 1.94900e+01 3.74348e+00 201 2018 7 1.57011e+01 2.90220e+00 128 2018 8 2.16800e+01 4.26886e+00 329 2018 9 2.95372e+01 4.48214e+00 320 2018 10 1.18458e+01 3.06445e+00 365 2018 11 1.32679e+01 2.51474e+00 755 2018 12 1.53549e+01 3.02505e+00 748 2019 1 1.57207e+01 4.23858e+00 603 2019 2 1.94912e+01 4.35668e+00 491 2019 3 2.16668e+01 4.85842e+00 602 2019 4 2.42565e+01 6.96159e+00 418 2019 5 nan nan 0 2019 6 2.76027e+01 7.61478e+00 187 2019 7 2.35756e+01 4.11432e+00 206 2019 8 2.22918e+01 6.16193e+00 308 2019 9 2.08101e+01 3.82017e+00 200 2019 10 1.97207e+01 2.63705e+00 448 2019 11 1.41775e+01 5.11156e+00 532 2019 12 1.48122e+01 4.73000e+00 582 2020 1 1.51453e+01 3.08089e+00 284 2020 2 1.60374e+01 4.64358e+00 681 2020 3 2.32302e+01 4.83229e+00 482 2020 4 2.39533e+01 3.68819e+00 674 2020 5 2.49763e+01 2.02497e+00 202 2020 6 2.05971e+01 7.91120e+00 460 2020 7 1.98794e+01 1.36284e+00 192 2020 8 2.30828e+01 7.09027e+00 263 2020 9 2.39439e+01 3.93590e+00 244 2020 10 2.56356e+01 8.15888e+00 418 2020 11 1.48861e+01 4.50972e+00 703 2020 12 1.29435e+01 3.65654e+00 808 2021 1 1.79502e+01 6.70599e+00 750 2021 2 1.25572e+01 4.21116e+00 810 2021 3 2.29689e+01 3.39386e+00 751 2021 4 2.23955e+01 7.76756e+00 261 2021 5 2.47494e+01 8.62553e+00 310 2021 6 8.53693e+00 3.33418e+00 195 2021 7 1.17893e+01 2.75818e+00 250 2021 8 1.49973e+01 2.13564e+00 159 2021 9 2.03966e+01 2.54310e+00 256 2021 10 2.74507e+01 6.30444e+00 348 2021 11 1.51970e+01 4.41690e+00 672 2021 12 1.27326e+01 4.51954e+00 504 2022 1 1.78311e+01 4.49762e+00 966 2022 2 2.20360e+01 6.24407e+00 653 2022 3 2.31257e+01 2.49297e+00 253 2022 4 2.48918e+01 6.03735e-01 65 2022 5 2.37182e+01 1.94753e+00 128 2022 6 2.41934e+01 5.57683e+00 243 2022 7 2.30684e+01 1.48074e+00 86 2022 8 2.42363e+01 2.55377e+00 265 2022 9 2.05163e+01 5.39638e+00 298 2022 10 1.70094e+01 3.85504e+00 262 2022 11 1.65158e+01 5.00184e+00 567 2022 12 1.57929e+01 8.03018e+00 1108 2023 1 1.64612e+01 3.87828e+00 820 2023 2 2.01779e+01 6.77734e+00 541 2023 3 2.14108e+01 6.38103e+00 755 2023 4 2.37937e+01 4.08322e+00 618 2023 5 2.97469e+01 3.48292e+00 403 2023 6 2.68694e+01 9.04195e+00 329 2023 7 nan nan 0 2023 8 2.28794e+01 7.92335e+00 391 2023 9 2.85651e+01 4.93620e+00 310 2023 10 1.88215e+01 3.89127e+00 361 2023 11 1.88955e+01 3.82091e+00 343 2023 12 1.65597e+01 5.06013e+00 539 2024 1 1.52115e+01 4.45100e+00 718 2024 2 1.52677e+01 7.12396e+00 749 2024 3 2.40794e+01 3.22632e+00 381 2024 4 2.01894e+01 5.44902e+00 519 2024 5 1.61157e+01 9.05274e-01 192 2024 6 1.87011e+01 4.65581e+00 128 2024 7 1.68218e+01 1.05773e+00 278 2024 8 1.76343e+01 4.45809e+00 413 2024 9 2.04084e+01 4.68526e+00 393 2024 10 1.65316e+01 2.93651e+00 415 2024 11 nan nan 0