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 1.01871e+00 3.24202e-01 55 2002 8 1.68143e+00 1.15151e+00 175 2002 9 4.03467e+00 2.78242e+00 193 2002 10 3.95044e+00 2.25896e+00 578 2002 11 2.63967e+00 1.14725e+00 492 2002 12 1.36998e+01 7.45150e+00 599 2003 1 2.47401e+01 1.11798e+01 438 2003 2 5.81475e+00 2.89028e+00 487 2003 3 1.54473e+00 2.16264e-01 137 2003 4 1.98631e+00 1.06182e+00 457 2003 5 9.67935e-01 4.19057e-01 312 2003 6 1.85029e+00 1.58224e-01 55 2003 7 4.11924e+00 9.35823e-01 175 2003 8 4.83938e+00 2.17975e+00 127 2003 9 1.14125e+01 5.82236e+00 280 2003 10 6.60185e+00 2.32114e+00 409 2003 11 5.03966e+00 1.57842e+00 658 2003 12 4.48009e+00 1.30705e+00 684 2004 1 3.54188e+00 2.28452e+00 628 2004 2 3.24205e+00 1.01839e+00 350 2004 3 2.86400e+00 7.77941e-01 505 2004 4 3.72408e+00 1.33592e+00 288 2004 5 1.14165e+00 1.92531e-01 217 2004 6 2.00004e+00 8.06676e-01 281 2004 7 1.83825e+00 1.58412e-01 38 2004 8 5.54637e+00 1.64938e+00 154 2004 9 1.52126e+01 4.68320e+00 171 2004 10 2.28201e+01 1.25404e+01 443 2004 11 1.11809e+01 4.66596e+00 447 2004 12 1.49065e+01 6.25878e+00 274 2005 1 6.64595e+00 1.75093e+00 604 2005 2 4.30836e+00 1.57924e+00 521 2005 3 3.64589e+00 8.48903e-01 502 2005 4 5.38202e+00 1.17896e+00 457 2005 5 1.46027e+00 8.92750e-01 173 2005 6 2.39832e+00 3.46749e-01 82 2005 7 6.43221e-01 2.63137e-01 58 2005 8 2.69630e+00 5.95825e-01 132 2005 9 3.52635e+00 1.79225e+00 193 2005 10 3.62448e+00 1.76108e+00 517 2005 11 3.39127e+00 9.09151e-01 616 2005 12 2.70573e+00 8.14628e-01 636 2006 1 2.93996e+00 1.04441e+00 536 2006 2 2.34929e+00 5.35652e-01 884 2006 3 2.36083e+00 5.78324e-01 795 2006 4 1.53398e+00 3.34133e-01 516 2006 5 1.23303e+00 2.34804e-01 436 2006 6 1.37796e+00 5.36086e-01 374 2006 7 1.90230e+00 3.72670e-01 164 2006 8 3.21829e+00 4.73766e-01 281 2006 9 6.21914e+00 2.90822e+00 296 2006 10 5.67038e+00 2.73179e+00 745 2006 11 3.08818e+00 9.60764e-01 504 2006 12 3.06393e+00 1.29342e+00 219 2007 1 3.16417e+00 6.03937e-01 379 2007 2 2.63070e+00 6.68486e-01 559 2007 3 2.96551e+00 9.55029e-01 553 2007 4 2.83891e+00 1.56550e+00 419 2007 5 7.48705e-01 6.69164e-02 87 2007 6 1.73498e+00 3.79194e-01 150 2007 7 1.73157e+00 4.88958e-01 275 2007 8 2.90733e+00 5.95732e-01 182 2007 9 4.53530e+00 2.47494e+00 371 2007 10 3.67756e+00 1.08385e+00 300 2007 11 3.53176e+00 9.39970e-01 711 2007 12 2.24013e+00 5.80803e-01 687 2008 1 3.81498e+00 1.15758e+00 360 2008 2 2.18018e+00 4.16306e-01 466 2008 3 2.07226e+00 9.47781e-01 562 2008 4 1.19353e+00 4.08710e-01 329 2008 5 1.22400e+00 6.10590e-01 340 2008 6 2.32523e+00 4.57588e-01 338 2008 7 2.71586e+00 1.90212e-01 157 2008 8 2.50391e+00 9.16358e-01 165 2008 9 2.19762e+00 8.98630e-01 199 2008 10 2.51716e+00 1.59934e+00 829 2008 11 3.70571e+00 1.16646e+00 952 2008 12 2.76193e+00 7.10137e-01 836 2009 1 2.95151e+00 7.18049e-01 734 2009 2 2.62559e+00 4.65582e-01 710 2009 3 2.20709e+00 4.94903e-01 954 2009 4 3.33380e+00 3.39961e-01 194 2009 5 1.46199e+00 5.76746e-01 290 2009 6 1.81509e+00 6.88824e-01 179 2009 7 2.96416e+00 6.68233e-01 194 2009 8 2.60995e+00 1.64815e+00 109 2009 9 2.04242e+00 9.35256e-01 297 2009 10 5.90040e+00 2.62636e+00 346 2009 11 5.31157e+00 2.38573e+00 492 2009 12 3.20616e+00 1.10342e+00 335 2010 1 3.15082e+00 7.05521e-01 560 2010 2 3.60317e+00 9.08182e-01 588 2010 3 3.33287e+00 8.58121e-01 936 2010 4 2.26413e+00 6.58777e-01 532 2010 5 2.16466e+00 6.74710e-01 219 2010 6 1.66762e+00 6.44651e-01 236 2010 7 1.55498e+00 6.21194e-01 188 2010 8 3.22874e+00 1.79424e+00 185 2010 9 6.18843e+00 2.24824e+00 270 2010 10 4.96448e+00 1.52525e+00 1028 2010 11 3.45982e+00 1.57574e+00 836 2010 12 3.65336e+00 7.28765e-01 948 2011 1 2.51843e+00 3.73975e-01 573 2011 2 2.41955e+00 3.76635e-01 482 2011 3 1.85951e+00 5.05158e-01 948 2011 4 2.61363e+00 6.62606e-01 576 2011 5 9.64417e-01 3.91592e-01 351 2011 6 1.92266e+00 3.13549e-01 172 2011 7 1.92949e+00 6.25470e-01 201 2011 8 2.96073e+00 4.64375e-01 138 2011 9 5.18031e+00 1.42805e+00 388 2011 10 5.34349e+00 1.47069e+00 538 2011 11 5.11724e+00 1.80432e+00 694 2011 12 1.80085e+00 6.80401e-01 975 2012 1 2.12173e+00 3.13905e-01 640 2012 2 2.47850e+00 7.39562e-01 478 2012 3 1.99342e+00 7.45666e-01 462 2012 4 1.25348e+00 3.97856e-01 381 2012 5 1.10399e+00 4.19651e-01 347 2012 6 5.20975e+00 1.43766e-01 9 2012 7 3.55246e+00 8.78309e-01 137 2012 8 4.88064e+00 1.74841e+00 313 2012 9 7.22287e+00 2.46968e+00 282 2012 10 1.04217e+01 3.19508e+00 394 2012 11 4.28780e+00 1.37861e+00 652 2012 12 4.19144e+00 1.15577e+00 433 2013 1 2.69400e+00 5.52596e-01 519 2013 2 2.61253e+00 5.77070e-01 648 2013 3 2.53614e+00 7.57984e-01 692 2013 4 1.61945e+00 4.00903e-01 318 2013 5 1.44931e+00 1.05545e+00 436 2013 6 3.17550e+00 4.50387e-01 299 2013 7 4.65339e+00 1.21605e+00 154 2013 8 4.33184e+00 2.02107e+00 396 2013 9 1.42937e+00 1.03574e+00 262 2013 10 2.57159e+00 1.26046e+00 504 2013 11 3.71816e+00 2.36365e-01 18 2013 12 3.72915e+00 1.25252e+00 514 2014 1 3.62149e+00 1.12887e+00 634 2014 2 2.86438e+00 6.70149e-01 565 2014 3 2.70726e+00 8.72927e-01 570 2014 4 1.12943e+00 7.22383e-01 541 2014 5 1.25403e+00 5.73475e-01 360 2014 6 1.38629e+00 4.46211e-01 208 2014 7 9.96005e-01 3.10004e-01 243 2014 8 2.06217e+00 5.66859e-01 330 2014 9 1.84852e+00 4.30317e-01 143 2014 10 6.48727e+00 1.95251e+00 828 2014 11 5.19313e+00 9.35310e-01 624 2014 12 4.78000e+00 1.75961e+00 505 2015 1 5.64282e+00 3.32205e+00 443 2015 2 3.90507e+00 1.29601e+00 670 2015 3 3.56878e+00 9.15808e-01 442 2015 4 2.14111e+00 1.03408e+00 304 2015 5 1.15069e+00 3.79095e-01 494 2015 6 1.39558e+00 4.97009e-01 176 2015 7 1.35092e+00 2.08971e-01 61 2015 8 5.30227e+00 1.78598e+00 145 2015 9 1.03728e+01 3.53867e+00 73 2015 10 5.34969e+00 3.81356e+00 455 2015 11 4.29910e+00 1.03801e+00 299 2015 12 4.12723e+00 1.23763e+00 213 2016 1 4.26438e+00 1.45753e+00 477 2016 2 4.28338e+00 1.87471e+00 766 2016 3 3.12855e+00 1.12397e+00 332 2016 4 1.97445e+00 5.21659e-01 401 2016 5 1.21574e+00 4.82134e-01 476 2016 6 1.78723e+00 5.72418e-01 282 2016 7 1.41227e+00 6.32140e-01 193 2016 8 1.51000e+00 6.15119e-01 172 2016 9 3.21753e+00 1.86412e+00 475 2016 10 4.54753e+00 1.08999e+00 244 2016 11 2.92302e+00 5.09045e-01 463 2016 12 2.60055e+00 6.79042e-01 577 2017 1 3.05137e+00 9.93252e-01 437 2017 2 2.59307e+00 9.25167e-01 1011 2017 3 2.44744e+00 5.84801e-01 749 2017 4 1.30423e+00 2.46331e-01 408 2017 5 3.08789e+00 1.11597e+00 327 2017 6 1.36642e+00 4.01509e-01 151 2017 7 7.84256e-01 2.25149e-01 124 2017 8 1.78656e+00 1.35236e+00 157 2017 9 1.48834e+01 1.04296e+01 171 2017 10 5.66886e+00 2.24067e+00 132 2017 11 3.96678e+00 1.08988e+00 674 2017 12 2.47932e+00 6.20305e-01 685 2018 1 4.48905e+00 1.62272e+00 550 2018 2 4.09295e+00 6.97021e-01 382 2018 3 5.03257e+00 1.30193e+00 883 2018 4 1.98135e+00 4.92322e-01 489 2018 5 1.32536e+00 5.87151e-01 189 2018 6 1.99826e+00 5.95632e-01 279 2018 7 2.31399e+00 5.97411e-01 107 2018 8 4.50064e+00 3.45589e+00 200 2018 9 8.62881e+00 8.41398e+00 210 2018 10 2.34195e+00 1.62353e+00 347 2018 11 3.61124e+00 1.10713e+00 358 2018 12 4.48828e+00 2.73378e+00 472 2019 1 4.80680e+00 1.40430e+00 611 2019 2 3.71601e+00 1.18130e+00 539 2019 3 4.44174e+00 2.14772e+00 633 2019 4 2.91611e+00 8.20927e-01 331 2019 5 1.94340e+00 3.80995e-01 371 2019 6 9.54638e-01 2.82807e-01 209 2019 7 2.73485e+00 7.39105e-01 438 2019 8 4.85056e+00 2.15915e+00 199 2019 9 3.49994e+00 2.46097e+00 201 2019 10 2.43573e+00 1.29884e+00 323 2019 11 2.02735e+00 7.03213e-01 464 2019 12 2.51574e+00 9.59967e-01 184 2020 1 2.64478e+00 7.33900e-01 522 2020 2 3.52019e+00 1.23465e+00 461 2020 3 2.31176e+00 9.50457e-01 471 2020 4 1.77002e+00 7.09754e-01 283 2020 5 1.31069e+00 3.34137e-01 460 2020 6 1.41136e+00 6.31393e-01 361 2020 7 1.35547e+00 6.60337e-01 168 2020 8 2.28935e+00 5.23423e-01 206 2020 9 3.96611e+00 1.11740e+00 114 2020 10 1.93188e+00 8.64127e-01 107 2020 11 7.80567e+00 4.20591e+00 329 2020 12 2.29982e+00 3.73269e-01 141 2021 1 3.53315e+00 1.28085e+00 324 2021 2 3.58335e+00 1.06526e+00 784 2021 3 3.74057e+00 1.36194e+00 428 2021 4 1.18028e+00 5.55670e-01 414 2021 5 1.58484e+00 5.19070e-01 505 2021 6 2.12597e+00 3.53149e-01 211 2021 7 6.28742e+00 5.63696e+00 123 2021 8 1.62029e+00 7.23609e-01 178 2021 9 1.84463e+00 1.17989e+00 132 2021 10 3.89909e+00 2.24768e+00 394 2021 11 3.79784e+00 1.02573e+00 528 2021 12 4.05469e+00 1.15515e+00 758 2022 1 3.65440e+00 9.66481e-01 805 2022 2 2.36372e+00 8.08293e-01 995 2022 3 3.43705e+00 1.79213e+00 601 2022 4 1.67838e+00 4.03951e-01 28 2022 5 1.16256e+00 3.95974e-01 605 2022 6 1.72456e+00 3.59525e-01 82 2022 7 1.56443e+00 2.88799e-01 107 2022 8 1.36928e+00 1.98782e-01 152 2022 9 4.94863e+00 2.41958e+00 335 2022 10 7.24230e+00 5.70895e+00 644 2022 11 5.06098e+00 1.78569e+00 468 2022 12 4.78477e+00 1.13536e+00 610 2023 1 3.01765e+00 8.53878e-01 657 2023 2 2.82966e+00 8.28486e-01 1069 2023 3 2.19285e+00 5.97144e-01 726 2023 4 1.60672e+00 3.11700e-01 368 2023 5 1.20923e+00 3.93268e-01 508 2023 6 9.31131e-01 2.71324e-01 212 2023 7 1.63679e+00 5.04803e-01 218 2023 8 1.73492e+00 5.14532e-01 273 2023 9 1.66908e+00 6.18595e-01 631 2023 10 1.59192e+00 8.81646e-01 434 2023 11 2.86317e+00 1.07815e+00 654 2023 12 3.28998e+00 6.32384e-01 255 2024 1 3.13572e+00 7.97188e-01 316 2024 2 3.01745e+00 6.26858e-01 746 2024 3 2.53123e+00 5.86769e-01 425 2024 4 nan nan 0