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 1.32704e+01 5.51409e+00 215 2002 8 1.33064e+01 1.73499e+01 340 2002 9 1.55461e+01 1.21750e+01 427 2002 10 5.15664e+00 3.22822e+00 558 2002 11 7.37000e+00 1.27354e+01 370 2002 12 3.20986e+00 8.64775e-01 331 2003 1 1.63848e+00 3.51485e-01 680 2003 2 2.34494e+00 7.62599e-01 527 2003 3 3.49267e+00 1.23894e+00 408 2003 4 8.11664e+00 3.25740e+00 396 2003 5 6.22452e+00 3.19158e+00 186 2003 6 2.14208e+01 1.62397e+01 218 2003 7 2.19686e+01 2.30481e+01 361 2003 8 9.42911e+00 1.73831e+00 195 2003 9 1.41323e+01 1.62043e+01 611 2003 10 9.87159e+00 5.62845e+00 439 2003 11 1.78665e+01 2.37697e+01 465 2003 12 3.60046e+00 9.83734e-01 467 2004 1 1.41854e+00 3.31247e-01 718 2004 2 1.78856e+00 5.92109e-01 616 2004 3 2.77081e+00 1.05797e+00 514 2004 4 2.93824e+01 2.65757e+01 201 2004 5 5.88535e+00 3.00337e+00 137 2004 6 2.42875e+01 2.98108e+01 186 2004 7 3.68532e+00 7.99002e-02 64 2004 8 1.69942e+01 2.14424e+01 283 2004 9 1.24151e+01 2.04827e+01 420 2004 10 6.21754e+00 4.10969e+00 454 2004 11 3.42329e+00 6.91498e-01 696 2004 12 2.69328e+00 2.99728e-01 288 2005 1 2.66539e+00 3.74888e-01 301 2005 2 2.61707e+00 4.27324e-01 365 2005 3 3.86163e+00 1.64191e+00 607 2005 4 1.22141e+01 8.64811e+00 559 2005 5 1.28601e+01 3.90445e+00 229 2005 6 1.42630e+01 1.44693e+01 178 2005 7 1.91166e+01 1.48387e+01 255 2005 8 6.09126e+00 2.35037e+00 216 2005 9 1.26938e+01 9.23563e+00 576 2005 10 1.26318e+01 1.91041e+01 338 2005 11 5.97712e+00 5.10560e+00 380 2005 12 2.57504e+00 4.90341e-01 642 2006 1 2.31638e+00 6.71058e-01 450 2006 2 2.52123e+00 1.14410e+00 504 2006 3 2.62282e+00 6.22855e-01 653 2006 4 4.45884e+00 4.94121e+00 338 2006 5 1.39841e+01 2.05594e+01 141 2006 6 8.47191e+00 1.16378e+00 127 2006 7 1.69349e+01 2.01709e+01 25 2006 8 9.82692e+00 1.74646e+01 327 2006 9 1.91525e+01 1.15059e+01 364 2006 10 5.32554e+00 1.98204e+00 546 2006 11 4.18465e+00 1.22723e+00 173 2006 12 3.35434e+00 1.06238e+00 443 2007 1 2.51210e+00 4.84550e-01 493 2007 2 1.73258e+00 6.96370e-01 533 2007 3 4.34471e+00 6.38234e+00 441 2007 4 8.80934e+00 2.60402e+00 233 2007 5 1.80325e+01 1.83828e+01 296 2007 6 7.10710e+00 1.37246e+01 74 2007 7 1.04964e+01 1.49253e+01 207 2007 8 9.62349e+00 6.34828e+00 324 2007 9 1.39432e+01 9.37739e+00 586 2007 10 1.13575e+01 3.12258e+00 394 2007 11 3.83425e+00 8.67909e-01 532 2007 12 2.18572e+00 1.95212e-01 193 2008 1 2.14870e+00 6.50025e-01 362 2008 2 1.90181e+00 2.71456e-01 366 2008 3 3.30286e+00 1.37692e+00 436 2008 4 1.96215e+01 2.04468e+01 592 2008 5 2.04583e+01 1.33641e+01 113 2008 6 6.66531e+00 3.15758e+00 171 2008 7 9.41327e+00 2.07560e+00 128 2008 8 1.50799e+01 1.55974e+01 489 2008 9 9.72218e+00 1.05985e+01 626 2008 10 8.60739e+00 1.07976e+01 523 2008 11 4.05819e+00 1.30984e+00 497 2008 12 2.45866e+00 7.68583e-01 312 2009 1 1.23473e+00 3.47247e-01 719 2009 2 1.25121e+00 3.75970e-01 512 2009 3 1.89462e+00 6.17133e-01 440 2009 4 1.72012e+01 1.82450e+01 293 2009 5 9.37511e+00 2.62540e+00 80 2009 6 5.75284e+00 3.24758e+00 118 2009 7 8.51455e+00 1.03597e+01 274 2009 8 1.77599e+01 2.54611e+01 238 2009 9 1.45081e+01 1.70773e+01 372 2009 10 2.74773e+00 4.46633e-01 220 2009 11 3.75882e+00 8.08463e-01 358 2009 12 3.67981e+00 2.24790e+00 519 2010 1 1.88016e+00 4.52798e-01 439 2010 2 2.24903e+00 4.94853e-01 360 2010 3 4.56543e+00 2.30674e+00 540 2010 4 1.29488e+01 9.81727e+00 387 2010 5 8.82969e+00 8.30024e+00 328 2010 6 2.04131e+01 2.32473e+01 249 2010 7 6.04482e+00 2.16499e+00 272 2010 8 9.81353e+00 1.04880e+01 354 2010 9 8.50828e+00 5.09620e+00 390 2010 10 6.90649e+00 5.46421e+00 579 2010 11 4.37265e+00 1.29973e+00 537 2010 12 2.97981e+00 5.22886e-01 376 2011 1 2.38614e+00 6.43540e-01 311 2011 2 1.56268e+00 1.48494e-01 406 2011 3 3.42038e+00 1.29068e+00 480 2011 4 1.03652e+01 4.22853e+00 137 2011 5 1.23350e+01 3.13578e+00 148 2011 6 1.99617e+01 2.61809e+01 128 2011 7 1.72488e+01 1.96095e+01 296 2011 8 6.94820e+00 7.13069e+00 527 2011 9 1.09915e+01 9.27837e+00 307 2011 10 6.70282e+00 2.86593e+00 301 2011 11 1.27917e+01 1.70234e+01 441 2011 12 4.09574e+00 1.57487e+00 512 2012 1 2.11856e+00 5.40789e-01 446 2012 2 2.20505e+00 2.72301e-01 557 2012 3 4.42303e+00 2.98082e+00 637 2012 4 7.99993e+00 8.53048e+00 276 2012 5 1.34037e+01 7.68229e+00 232 2012 6 1.67186e+01 1.76691e+01 288 2012 7 9.98148e+00 6.35902e+00 421 2012 8 1.50014e+01 1.54994e+01 418 2012 9 1.40104e+01 1.44520e+01 465 2012 10 6.84774e+00 2.59749e+00 309 2012 11 4.00425e+00 7.40855e-01 514 2012 12 2.77838e+00 3.52277e-01 256 2013 1 2.33873e+00 3.39018e-01 496 2013 2 2.23189e+00 6.35467e-01 265 2013 3 2.73601e+00 2.80234e-01 57 2013 4 3.94866e+00 1.57840e+00 583 2013 5 4.68733e+00 9.54177e-01 159 2013 6 1.55850e+01 1.44429e+01 196 2013 7 8.04387e+00 4.52280e+00 188 2013 8 1.46565e+01 9.93474e+00 320 2013 9 1.20779e+01 1.70255e+01 849 2013 10 8.12881e+00 9.96886e+00 431 2013 11 6.03665e+00 4.53642e+00 789 2013 12 3.30195e+00 3.35827e+00 511 2014 1 2.35940e+00 4.53773e-01 458 2014 2 2.28192e+00 5.32344e-01 294 2014 3 2.30234e+00 6.36563e-01 408 2014 4 3.59150e+00 9.08074e-01 355 2014 5 1.56070e+01 1.52163e+01 334 2014 6 8.59566e+00 5.83438e+00 355 2014 7 1.05454e+01 2.50302e+00 70 2014 8 1.01956e+01 8.29388e+00 555 2014 9 1.12907e+01 8.87371e+00 723 2014 10 4.79126e+00 2.48519e+00 490 2014 11 3.85710e+00 5.87581e-01 325 2014 12 2.42265e+00 2.65751e-01 185 2015 1 2.20420e+00 4.68021e-01 516 2015 2 2.29559e+00 5.92587e-01 264 2015 3 2.18379e+00 9.24747e-01 629 2015 4 2.78525e+00 8.10799e-01 401 2015 5 2.21253e+01 2.70749e+01 248 2015 6 4.15564e+00 1.67789e+00 236 2015 7 1.36516e+01 5.78999e+00 95 2015 8 6.76363e+00 3.19723e+00 451 2015 9 8.36149e+00 6.64959e+00 625 2015 10 5.08530e+00 2.46220e+00 680 2015 11 4.19191e+00 8.86876e-01 707 2015 12 3.92477e+00 7.43828e-01 280 2016 1 2.78371e+00 5.40322e-01 468 2016 2 2.83605e+00 5.24099e-01 408 2016 3 2.73557e+00 8.29716e-01 419 2016 4 5.09933e+00 3.98357e+00 455 2016 5 5.47362e+00 1.27565e+00 251 2016 6 1.08178e+01 1.66400e+01 218 2016 7 6.43337e+00 3.43330e+00 173 2016 8 9.95220e+00 9.04685e+00 609 2016 9 2.02469e+01 2.54174e+01 349 2016 10 4.98175e+00 1.37721e+00 487 2016 11 5.32378e+00 2.14026e+00 642 2016 12 1.36553e+01 1.19796e+01 461 2017 1 3.35474e+00 1.47597e+00 441 2017 2 2.31071e+00 4.38331e-01 366 2017 3 2.31996e+00 5.95738e-01 609 2017 4 5.37426e+00 4.72617e+00 375 2017 5 1.22115e+01 5.95852e+00 126 2017 6 9.03445e+00 4.38476e+00 175 2017 7 5.39078e+00 2.17034e+00 204 2017 8 1.40393e+01 9.35227e+00 518 2017 9 1.99215e+01 2.06816e+01 388 2017 10 1.02788e+01 4.77575e+00 670 2017 11 5.30336e+00 2.41788e+00 498 2017 12 2.40622e+00 4.81178e-01 285 2018 1 1.87735e+00 5.04887e-01 415 2018 2 2.15068e+00 5.31843e-01 293 2018 3 3.12889e+00 7.18865e-01 268 2018 4 3.90935e+00 2.12436e+00 436 2018 5 2.70473e+01 2.13282e+01 253 2018 6 8.02546e+00 5.54629e+00 345 2018 7 8.31816e+00 4.52479e+00 476 2018 8 1.90963e+01 2.02366e+01 342 2018 9 6.55551e+00 4.64151e+00 175 2018 10 5.29409e+00 3.06213e+00 314 2018 11 3.90714e+00 1.39460e+00 452 2018 12 2.83841e+00 6.98851e-01 893 2019 1 2.06586e+00 8.51344e-01 452 2019 2 1.78912e+00 4.02850e-01 370 2019 3 1.73956e+00 9.28296e-01 493 2019 4 3.86604e+00 1.49940e+00 307 2019 5 8.34933e+00 3.18830e+00 107 2019 6 9.71219e+00 6.87194e+00 248 2019 7 9.84940e+00 4.42123e+00 326 2019 8 1.33585e+01 1.45274e+01 315 2019 9 1.43488e+01 8.98319e+00 544 2019 10 6.87109e+00 3.15228e+00 200 2019 11 4.64637e+00 8.98402e-01 467 2019 12 2.33158e+00 2.64280e-01 401 2020 1 2.44804e+00 9.68725e-01 508 2020 2 2.72063e+00 9.83937e-01 525 2020 3 3.45199e+00 5.84854e-01 513 2020 4 1.53020e+01 6.25146e+00 148 2020 5 9.14828e+00 8.68735e+00 329 2020 6 7.28904e+00 3.05018e+00 231 2020 7 6.22682e+00 3.18175e+00 408 2020 8 6.77022e+00 1.02223e+00 182 2020 9 1.88326e+01 1.53258e+01 369 2020 10 7.32622e+00 5.34973e+00 359 2020 11 7.16084e+00 4.62137e+00 410 2020 12 3.56039e+00 7.78624e-01 256 2021 1 3.17558e+00 5.83013e-01 401 2021 2 2.22257e+00 3.24495e-01 334 2021 3 3.62998e+00 1.38790e+00 895 2021 4 2.77866e+00 7.71952e-01 452 2021 5 8.96191e+00 4.89019e+00 231 2021 6 1.81258e+01 1.12806e+01 151 2021 7 8.10903e+00 3.02048e+00 102 2021 8 1.75524e+01 1.30813e+01 128 2021 9 2.14570e+01 2.10087e+01 301 2021 10 9.48319e+00 8.33696e+00 590 2021 11 6.43893e+00 3.36910e+00 780 2021 12 4.54698e+00 1.01686e+00 176 2022 1 2.80736e+00 1.02419e+00 405 2022 2 2.09342e+00 6.58990e-01 570 2022 3 2.51133e+00 7.78706e-01 346 2022 4 4.76423e+00 1.39921e+00 230 2022 5 1.09990e+01 4.72261e+00 252 2022 6 9.49368e+00 1.76966e+01 272 2022 7 5.79811e+00 3.58462e+00 460 2022 8 6.28229e+00 2.20406e+00 459 2022 9 1.53981e+01 1.04900e+01 370 2022 10 5.72106e+00 4.23665e+00 809 2022 11 3.28080e+00 8.68163e-01 897 2022 12 3.92854e+00 2.45205e+00 559 2023 1 5.26600e+00 2.33339e+00 320 2023 2 2.26650e+00 4.90210e-01 350 2023 3 3.22558e+00 9.31037e-01 456 2023 4 3.86638e+00 1.49445e+00 452 2023 5 1.84987e+01 1.67308e+01 280 2023 6 4.70066e+00 2.94663e+00 250 2023 7 5.73841e+00 2.52223e+00 304 2023 8 9.99441e+00 7.30592e+00 506 2023 9 9.61598e+00 1.26420e+01 449 2023 10 7.74940e+00 8.90074e+00 502 2023 11 6.55823e+00 2.96836e+00 575 2023 12 5.22314e+00 2.83699e+00 335 2024 1 3.96352e+00 1.90469e+00 424 2024 2 4.68786e+00 3.96003e+00 927 2024 3 4.00098e+00 7.32837e-01 390 2024 4 nan nan 0