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 4.99867e+00 9.64160e-01 128 2002 8 6.34896e+00 2.32576e+00 328 2002 9 6.91478e+00 4.75693e+00 152 2002 10 6.92438e+00 2.33795e+00 511 2002 11 8.17757e+00 3.23306e+00 741 2002 12 7.29850e+00 2.95928e+00 500 2003 1 7.86911e+00 2.75804e+00 655 2003 2 6.53719e+00 2.35587e+00 479 2003 3 nan nan 0 2003 4 nan nan 0 2003 5 2.51756e+01 1.27662e+01 22 2003 6 3.69692e+01 7.87451e+00 14 2003 7 nan nan 0 2003 8 3.58343e+01 8.24153e+00 29 2003 9 1.95796e+01 1.03847e+01 190 2003 10 1.32846e+01 7.82142e+00 477 2003 11 1.06971e+01 3.54151e+00 671 2003 12 6.82100e+00 3.99185e+00 562 2004 1 6.98223e+00 2.02471e+00 695 2004 2 7.64667e+00 4.25472e+00 356 2004 3 1.87714e+01 8.17403e+00 638 2004 4 6.86359e+00 1.68726e+00 237 2004 5 6.68327e+00 1.46315e+00 386 2004 6 7.49070e+00 3.20382e+00 249 2004 7 1.00178e+01 1.83889e+00 194 2004 8 1.57421e+01 7.64478e+00 252 2004 9 1.41540e+01 3.31687e+00 83 2004 10 nan nan 0 2004 11 nan nan 0 2004 12 2.08025e+01 7.28575e+00 198 2005 1 1.63577e+01 1.20166e+01 314 2005 2 1.57055e+01 9.27132e+00 279 2005 3 1.05459e+01 6.82788e+00 313 2005 4 1.28016e+01 9.20218e+00 140 2005 5 2.89030e+01 6.55816e+00 41 2005 6 3.01384e+01 6.12185e+00 8 2005 7 nan nan 0 2005 8 3.58684e+01 8.64759e+00 110 2005 9 1.76173e+01 7.28976e+00 174 2005 10 8.41163e+00 2.82531e+00 556 2005 11 6.57726e+00 2.40599e+00 572 2005 12 7.82586e+00 2.58546e+00 576 2006 1 1.83845e+01 1.03780e+01 268 2006 2 2.02172e+01 9.28331e+00 238 2006 3 2.08893e+01 1.04459e+01 375 2006 4 9.70998e+00 3.42090e+00 277 2006 5 7.35383e+00 3.91151e+00 180 2006 6 8.07134e+00 1.90265e+00 127 2006 7 1.06757e+01 2.73686e+00 153 2006 8 8.55111e+00 1.38652e+00 115 2006 9 8.53493e+00 1.98380e+00 601 2006 10 6.86903e+00 2.59079e+00 465 2006 11 6.69297e+00 3.72397e+00 573 2006 12 4.11677e+00 1.71802e+00 354 2007 1 4.99155e+00 1.22853e+00 274 2007 2 4.83936e+00 2.27980e+00 569 2007 3 6.20688e+00 2.71086e+00 883 2007 4 6.26316e+00 2.67373e+00 428 2007 5 8.61948e+00 2.53805e+00 66 2007 6 6.87329e+00 1.19132e+00 143 2007 7 8.69186e+00 2.56740e+00 254 2007 8 8.04699e+00 1.91583e+00 225 2007 9 7.76032e+00 1.58932e+00 236 2007 10 6.00253e+00 1.78374e+00 352 2007 11 5.23631e+00 1.92412e+00 825 2007 12 5.91056e+00 1.70973e+00 534 2008 1 5.86010e+00 2.95666e+00 408 2008 2 6.70810e+00 1.27248e+00 652 2008 3 1.11158e+01 1.09736e+01 235 2008 4 2.59087e+01 7.71705e+00 152 2008 5 1.64399e+01 1.06025e+01 219 2008 6 1.11250e+01 2.27957e+00 185 2008 7 8.47016e+00 3.37098e+00 298 2008 8 8.10328e+00 1.68219e+00 64 2008 9 1.83350e+01 7.61041e+00 183 2008 10 1.47568e+01 8.20410e+00 653 2008 11 6.34229e+00 2.02024e+00 818 2008 12 1.30676e+01 6.81592e+00 602 2009 1 1.12266e+01 5.39636e+00 579 2009 2 6.38783e+00 2.59463e+00 709 2009 3 5.79347e+00 3.26770e+00 627 2009 4 1.44318e+01 9.93613e+00 190 2009 5 1.40076e+01 5.69292e+00 65 2009 6 7.78359e+00 2.14277e+00 62 2009 7 nan nan 0 2009 8 1.80566e+01 7.32220e+00 387 2009 9 1.25119e+01 5.13479e+00 344 2009 10 7.26016e+00 2.08883e+00 731 2009 11 5.41694e+00 2.77058e+00 500 2009 12 5.44609e+00 2.65369e+00 248 2010 1 7.50463e+00 4.61325e+00 707 2010 2 1.21599e+01 4.98469e+00 482 2010 3 1.57505e+01 6.04577e+00 475 2010 4 2.68740e+01 1.29814e+01 70 2010 5 1.64980e+01 1.03592e+01 225 2010 6 1.26964e+01 6.65403e+00 367 2010 7 1.66591e+01 8.60556e+00 126 2010 8 1.35684e+01 7.09480e+00 113 2010 9 1.54869e+01 6.50757e+00 240 2010 10 7.18976e+00 2.91329e+00 1339 2010 11 6.46233e+00 2.38597e+00 958 2010 12 4.95181e+00 2.60231e+00 584 2011 1 4.83634e+00 2.75397e+00 467 2011 2 6.30957e+00 5.67403e+00 704 2011 3 7.32688e+00 3.06887e+00 732 2011 4 8.35931e+00 3.37775e+00 525 2011 5 5.72105e+00 2.96303e+00 437 2011 6 5.22868e+00 9.88647e-01 162 2011 7 7.75028e+00 2.17114e+00 263 2011 8 8.21851e+00 5.39695e+00 190 2011 9 6.39330e+00 1.79424e+00 564 2011 10 5.91362e+00 2.63052e+00 754 2011 11 5.46599e+00 2.33050e+00 938 2011 12 5.27530e+00 2.16508e+00 731 2012 1 5.37317e+00 4.03369e+00 875 2012 2 4.24046e+00 1.49897e+00 145 2012 3 5.81392e+00 3.52594e+00 604 2012 4 5.96164e+00 3.81923e+00 552 2012 5 5.75357e+00 1.23945e+00 256 2012 6 1.47541e+01 4.12021e+00 47 2012 7 6.88011e+00 0.00000e+00 6 2012 8 nan nan 0 2012 9 2.78110e+01 9.56812e+00 172 2012 10 2.75159e+01 1.01205e+01 72 2012 11 6.25255e+00 1.45777e+00 478 2012 12 7.13353e+00 1.54254e+00 284 2013 1 6.28959e+00 3.36624e+00 441 2013 2 5.27034e+00 7.12795e-01 300 2013 3 7.33611e+00 3.62868e+00 475 2013 4 3.33465e+01 9.01471e+00 45 2013 5 1.39482e+01 8.21692e+00 157 2013 6 2.75833e+01 6.27663e+00 97 2013 7 3.09848e+01 1.94808e+00 3 2013 8 3.69961e+01 1.34015e+00 2 2013 9 2.42797e+01 2.15591e+01 2 2013 10 1.42211e+01 6.82017e+00 573 2013 11 9.64957e+00 2.37906e+00 234 2013 12 6.77016e+00 1.43490e+00 585 2014 1 7.55865e+00 2.47659e+00 230 2014 2 1.34776e+01 1.01202e+01 505 2014 3 1.21005e+01 3.43800e+00 419 2014 4 2.59856e+01 8.75434e+00 79 2014 5 3.08687e+01 8.07844e+00 45 2014 6 1.12663e+01 1.26214e+00 55 2014 7 2.06718e+01 9.88912e+00 330 2014 8 1.07972e+01 2.70739e+00 183 2014 9 7.26803e+00 1.86475e+00 63 2014 10 1.27570e+01 6.27831e+00 1016 2014 11 6.62528e+00 3.10527e+00 759 2014 12 5.58785e+00 3.44465e+00 440 2015 1 7.84982e+00 5.22327e+00 576 2015 2 1.09482e+01 8.55499e+00 537 2015 3 2.67677e+01 1.20556e+01 201 2015 4 2.37782e+01 8.77762e+00 67 2015 5 1.34754e+01 5.45927e+00 268 2015 6 9.23921e+00 2.26603e+00 252 2015 7 8.92333e+00 5.20946e+00 28 2015 8 nan nan 0 2015 9 1.59234e+01 6.12440e+00 126 2015 10 9.45911e+00 3.79061e+00 549 2015 11 1.52601e+01 9.36603e+00 367 2015 12 8.67401e+00 3.39880e+00 436 2016 1 7.61073e+00 3.52098e+00 395 2016 2 1.23360e+01 9.57358e+00 611 2016 3 1.56922e+01 9.15815e+00 438 2016 4 1.36985e+01 6.03198e+00 182 2016 5 1.42015e+01 6.73081e+00 373 2016 6 9.88054e+00 2.80036e+00 429 2016 7 1.02030e+01 2.92752e+00 469 2016 8 1.44163e+01 7.54415e+00 239 2016 9 2.65723e+01 8.93511e+00 152 2016 10 8.18791e+00 3.19186e+00 572 2016 11 6.34834e+00 1.59717e+00 716 2016 12 6.30385e+00 2.23340e+00 540 2017 1 5.71914e+00 2.06288e+00 441 2017 2 1.50761e+01 5.31638e+00 531 2017 3 9.24594e+00 4.00432e+00 709 2017 4 6.58361e+00 1.56718e+00 415 2017 5 7.52369e+00 2.44047e+00 253 2017 6 7.36666e+00 2.82629e+00 162 2017 7 1.35925e+01 4.41373e+00 64 2017 8 1.91385e+01 9.37740e+00 206 2017 9 1.48914e+01 7.28562e+00 179 2017 10 1.15230e+01 1.21318e+00 63 2017 11 1.14603e+01 4.55529e+00 995 2017 12 7.59134e+00 2.45850e+00 488 2018 1 5.97682e+00 1.73665e+00 593 2018 2 1.46960e+01 7.02114e+00 422 2018 3 9.11631e+00 4.01684e+00 530 2018 4 1.08832e+01 3.81253e+00 423 2018 5 8.18240e+00 2.91213e+00 153 2018 6 1.86563e+01 1.10837e+01 173 2018 7 2.01617e+01 3.46071e+00 42 2018 8 1.27818e+01 0.00000e+00 3 2018 9 2.33502e+01 1.03560e+01 340 2018 10 1.06322e+01 4.41075e+00 644 2018 11 6.77717e+00 1.30212e+00 101 2018 12 1.61339e+01 8.88650e+00 380 2019 1 2.58408e+01 9.75884e+00 98 2019 2 nan nan 0 2019 3 1.90760e+01 9.11635e+00 315 2019 4 1.22617e+01 3.60207e+00 281 2019 5 1.02748e+01 3.18748e+00 392 2019 6 1.09293e+01 6.35725e+00 159 2019 7 2.02068e+01 9.09203e+00 63 2019 8 1.89214e+01 7.75210e+00 89 2019 9 1.10139e+01 4.84738e+00 233 2019 10 9.13650e+00 3.49248e+00 400 2019 11 7.21782e+00 2.60849e+00 613 2019 12 6.98910e+00 2.85312e+00 234 2020 1 8.52994e+00 4.39966e+00 355 2020 2 7.83650e+00 3.49732e+00 195 2020 3 1.50950e+01 8.12125e+00 273 2020 4 1.06376e+01 4.03051e+00 132 2020 5 1.59724e+01 8.78834e+00 343 2020 6 1.81225e+01 8.92445e+00 196 2020 7 1.96395e+01 8.51794e+00 45 2020 8 1.94758e+01 5.99734e+00 113 2020 9 1.45405e+01 4.24988e+00 36 2020 10 1.48948e+01 6.53119e+00 446 2020 11 9.62833e+00 3.10833e+00 516 2020 12 6.59785e+00 3.50155e+00 512 2021 1 6.80793e+00 2.87984e+00 174 2021 2 1.61703e+01 6.67437e+00 238 2021 3 2.34964e+01 7.65749e+00 194 2021 4 2.84052e+01 9.56754e+00 127 2021 5 1.48926e+01 3.01180e+00 261 2021 6 8.82162e+00 1.23839e+00 84 2021 7 1.81893e+01 1.30211e+01 75 2021 8 nan nan 0 2021 9 2.14290e+01 1.84675e+01 31 2021 10 2.15236e+01 1.06546e+01 252 2021 11 8.47502e+00 2.64364e+00 653 2021 12 9.39743e+00 4.41052e+00 543 2022 1 1.09676e+01 3.78389e+00 239 2022 2 9.18645e+00 4.43588e+00 701 2022 3 1.02256e+01 4.46283e+00 498 2022 4 nan nan 0 2022 5 1.95330e+01 7.90581e+00 267 2022 6 1.31920e+01 4.43375e+00 197 2022 7 1.27776e+01 3.90076e+00 181 2022 8 2.12780e+01 1.10249e+01 223 2022 9 1.02598e+01 3.20299e+00 190 2022 10 6.14906e+00 2.43561e+00 1056 2022 11 1.08583e+01 6.11219e+00 345 2022 12 7.80260e+00 4.10610e+00 607 2023 1 6.40570e+00 2.12432e+00 554 2023 2 1.01511e+01 6.96102e+00 440 2023 3 1.42497e+01 6.43427e+00 217 2023 4 1.44277e+01 7.68679e+00 408 2023 5 1.04753e+01 1.89974e+00 131 2023 6 1.13063e+01 3.66664e+00 179 2023 7 1.35540e+01 9.60768e+00 330 2023 8 2.19905e+01 1.55938e+01 141 2023 9 2.85524e+01 1.06374e+01 199 2023 10 1.19333e+01 7.61638e+00 666 2023 11 8.22773e+00 2.98773e+00 468 2023 12 1.11479e+01 4.62167e+00 217 2024 1 2.44365e+01 1.28585e+01 114 2024 2 1.87386e+01 5.86331e+00 477 2024 3 1.61528e+01 4.55507e+00 230 2024 4 nan nan 0