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 1.46545e+00 6.57847e-01 7 2002 8 2.07762e+00 8.79849e-01 243 2002 9 1.93788e+00 4.72702e-01 160 2002 10 2.22168e+00 2.06656e+00 680 2002 11 3.01797e+00 2.09716e+00 1006 2002 12 3.49577e+00 1.26705e+00 594 2003 1 6.43039e+00 3.40934e+00 959 2003 2 3.33823e+00 8.71539e-01 630 2003 3 1.39127e+01 1.04037e+01 245 2003 4 1.11196e+01 1.17868e+01 140 2003 5 4.39535e+00 1.06167e+00 64 2003 6 5.75914e+00 3.05534e+00 160 2003 7 6.48250e+00 2.97362e+00 64 2003 8 3.68808e+00 2.85277e+00 73 2003 9 3.19991e+00 1.39623e+00 387 2003 10 2.86357e+00 1.52598e+00 806 2003 11 2.40813e+00 1.17757e+00 958 2003 12 7.93183e+00 6.36153e+00 870 2004 1 4.56200e+00 2.75858e+00 682 2004 2 2.05625e+00 4.56109e-01 256 2004 3 4.43665e+00 2.61343e+00 734 2004 4 5.93483e+00 3.57831e+00 366 2004 5 2.82803e+00 2.34108e+00 460 2004 6 2.21400e+00 8.77902e-01 278 2004 7 2.47572e+00 1.17227e+00 286 2004 8 2.01057e+00 1.09258e+00 292 2004 9 4.17518e+00 2.97710e+00 204 2004 10 7.84808e+00 5.33102e+00 263 2004 11 9.53552e+00 5.18378e+00 569 2004 12 1.21783e+01 6.51454e+00 532 2005 1 6.72223e+00 2.75558e+00 571 2005 2 5.07489e+00 1.62660e+00 468 2005 3 5.50718e+00 1.88417e+00 477 2005 4 6.52294e+00 2.73025e+00 236 2005 5 4.38543e+00 1.87444e+00 186 2005 6 8.18964e+00 5.83771e+00 260 2005 7 1.61665e+01 1.27769e+01 204 2005 8 1.10189e+01 5.44243e+00 228 2005 9 4.72432e+00 2.27899e+00 233 2005 10 4.81167e+00 2.47514e+00 772 2005 11 4.04864e+00 1.89504e+00 1062 2005 12 5.07236e+00 3.19367e+00 833 2006 1 5.59703e+00 3.67487e+00 768 2006 2 8.27920e+00 4.86725e+00 648 2006 3 6.66357e+00 3.02198e+00 1063 2006 4 5.18156e+00 2.47843e+00 344 2006 5 2.95752e+00 2.29890e+00 484 2006 6 1.66908e+00 7.68260e-01 248 2006 7 1.63738e+00 9.25384e-01 251 2006 8 2.47353e+00 1.65061e+00 263 2006 9 2.80873e+00 1.25284e+00 536 2006 10 2.50382e+00 2.63850e+00 929 2006 11 3.51994e+00 3.37690e+00 844 2006 12 1.23923e+00 9.05736e-01 491 2007 1 1.95436e+00 1.21584e+00 478 2007 2 2.60554e+00 2.09589e+00 951 2007 3 1.45950e+00 1.07549e+00 896 2007 4 1.65206e+00 9.47999e-01 617 2007 5 1.28376e+00 8.52947e-01 82 2007 6 2.06425e+00 5.71276e-01 112 2007 7 3.22402e+00 1.70947e+00 252 2007 8 2.30764e+00 6.12185e-01 381 2007 9 2.49645e+00 2.60390e+00 408 2007 10 1.83091e+00 1.14549e+00 643 2007 11 1.11310e+00 6.53262e-01 1054 2007 12 1.98824e+00 2.51773e+00 742 2008 1 2.86385e+00 3.22936e+00 878 2008 2 1.66168e+00 1.01585e+00 1155 2008 3 3.30652e+00 4.39502e+00 812 2008 4 3.96201e+00 1.68606e+00 510 2008 5 3.10017e+00 1.56873e+00 441 2008 6 2.58294e+00 1.31525e+00 244 2008 7 1.81160e+00 6.75240e-01 255 2008 8 2.84658e+00 6.46621e-01 126 2008 9 4.99778e+00 3.45098e+00 472 2008 10 2.83743e+00 1.03066e+00 769 2008 11 3.12212e+00 1.47760e+00 832 2008 12 4.19966e+00 2.11976e+00 793 2009 1 4.79227e+00 2.39135e+00 609 2009 2 3.16560e+00 1.45689e+00 965 2009 3 2.38844e+00 1.87423e+00 894 2009 4 3.71825e+00 1.54107e+00 379 2009 5 6.45078e+00 6.14287e+00 157 2009 6 2.26580e+00 1.08918e+00 248 2009 7 3.92250e+00 6.15063e+00 180 2009 8 3.15289e+00 1.79568e+00 363 2009 9 3.50073e+00 1.87375e+00 287 2009 10 1.95435e+00 9.50568e-01 870 2009 11 1.41465e+00 9.40571e-01 564 2009 12 2.65353e+00 1.24034e+00 212 2010 1 6.35078e+00 2.77086e+00 857 2010 2 1.33947e+01 9.93224e+00 461 2010 3 1.67337e+01 8.11993e+00 557 2010 4 9.06090e+00 5.02360e+00 316 2010 5 5.35439e+00 2.48967e+00 321 2010 6 3.04758e+00 2.75912e+00 410 2010 7 3.84265e+00 2.74156e+00 243 2010 8 2.50898e+00 9.30241e-01 138 2010 9 2.16953e+00 1.30723e+00 473 2010 10 1.90081e+00 1.03792e+00 1293 2010 11 1.35037e+00 8.43979e-01 1092 2010 12 2.48179e+00 1.78099e+00 994 2011 1 2.48376e+00 1.25491e+00 640 2011 2 1.62588e+00 6.62141e-01 587 2011 3 2.36779e+00 1.34327e+00 904 2011 4 2.47449e+00 8.54436e-01 524 2011 5 1.29763e+00 6.11304e-01 542 2011 6 9.96370e-01 6.00910e-01 201 2011 7 2.89274e+00 2.11922e+00 241 2011 8 2.01725e+00 1.16864e+00 466 2011 9 1.22854e+00 5.62037e-01 602 2011 10 1.32372e+00 7.26324e-01 1037 2011 11 1.37054e+00 8.85571e-01 780 2011 12 1.52949e+00 1.11294e+00 924 2012 1 2.64474e+00 1.53174e+00 1044 2012 2 2.65863e+00 1.22939e+00 202 2012 3 1.40885e+00 1.25886e+00 849 2012 4 1.66594e+00 7.61571e-01 672 2012 5 1.11130e+00 5.00838e-01 502 2012 6 1.89840e+00 6.20644e-01 172 2012 7 2.89989e+00 4.77933e-01 64 2012 8 9.35718e+00 2.16923e+00 64 2012 9 1.39266e+01 1.00140e+01 355 2012 10 7.73578e+00 2.87302e+00 744 2012 11 6.86459e+00 3.89643e+00 849 2012 12 4.73459e+00 3.19137e+00 447 2013 1 3.51030e+00 3.30796e+00 617 2013 2 3.63389e+00 1.82835e+00 609 2013 3 4.68654e+00 2.54736e+00 583 2013 4 2.99304e+00 1.19567e+00 331 2013 5 2.42705e+00 9.21378e-01 342 2013 6 2.39576e+00 1.36883e+00 267 2013 7 5.53387e+00 3.06977e+00 116 2013 8 1.90244e+01 8.89183e+00 108 2013 9 1.45324e+01 8.53325e+00 489 2013 10 5.92490e+00 2.09421e+00 574 2013 11 4.01693e+00 1.59796e+00 573 2013 12 2.29906e+00 1.11363e+00 809 2014 1 4.96383e+00 2.38259e+00 539 2014 2 4.16063e+00 1.31632e+00 604 2014 3 7.17626e+00 3.23075e+00 608 2014 4 1.33954e+01 8.53332e+00 149 2014 5 2.06908e+01 8.02227e+00 57 2014 6 9.85886e+00 7.78512e+00 148 2014 7 4.04457e+00 1.57104e+00 256 2014 8 2.39609e+00 6.27950e-01 241 2014 9 2.37514e+00 1.24808e+00 305 2014 10 2.22733e+00 1.10222e+00 1248 2014 11 3.66679e+00 2.63107e+00 983 2014 12 1.27652e+00 5.09769e-01 765 2015 1 2.73843e+00 2.68850e+00 882 2015 2 7.11146e+00 5.02043e+00 781 2015 3 5.77650e+00 3.06993e+00 411 2015 4 4.49445e+00 1.51891e+00 137 2015 5 2.42915e+00 6.21464e-01 275 2015 6 2.12306e+00 7.84431e-01 471 2015 7 1.82242e+00 3.38259e-01 64 2015 8 6.45945e+00 4.58835e+00 138 2015 9 6.50790e+00 4.47242e+00 239 2015 10 2.46588e+00 8.92389e-01 535 2015 11 3.41596e+00 2.47327e+00 600 2015 12 1.78672e+00 1.52686e+00 510 2016 1 3.08225e+00 1.92865e+00 619 2016 2 5.85897e+00 4.53262e+00 1160 2016 3 4.28546e+00 1.79480e+00 815 2016 4 3.08344e+00 1.49382e+00 480 2016 5 2.99368e+00 2.02654e+00 280 2016 6 1.75938e+00 7.27617e-01 352 2016 7 1.78340e+00 1.04532e+00 435 2016 8 9.71338e+00 9.17451e+00 549 2016 9 7.83033e+00 5.17090e+00 540 2016 10 3.34958e+00 1.92590e+00 511 2016 11 1.76385e+00 8.78174e-01 860 2016 12 1.92932e+00 7.86096e-01 734 2017 1 2.94381e+00 2.99348e+00 704 2017 2 2.89651e+00 1.33841e+00 1062 2017 3 2.04697e+00 7.29722e-01 858 2017 4 2.48099e+00 1.19262e+00 636 2017 5 1.82380e+00 5.02728e-01 373 2017 6 1.23690e+00 9.09703e-01 254 2017 7 2.40128e+00 1.73549e+00 142 2017 8 2.98412e+00 1.57233e+00 344 2017 9 2.30750e+00 9.85171e-01 279 2017 10 4.29053e+00 2.36273e+00 630 2017 11 1.39503e+00 8.68676e-01 866 2017 12 2.09132e+00 1.04594e+00 687 2018 1 1.69702e+00 7.56031e-01 832 2018 2 2.65767e+00 9.41668e-01 448 2018 3 2.85029e+00 1.38787e+00 596 2018 4 1.89509e+00 9.04977e-01 492 2018 5 3.08684e+00 1.56439e+00 325 2018 6 4.66435e+00 4.41351e+00 241 2018 7 2.70193e+00 1.25822e+00 194 2018 8 7.61329e+00 5.85389e+00 311 2018 9 6.44454e+00 5.21747e+00 721 2018 10 3.86555e+00 1.60784e+00 738 2018 11 8.28651e+00 4.66599e+00 214 2018 12 8.85486e+00 8.12885e+00 583 2019 1 1.37349e+01 7.78019e+00 504 2019 2 1.38408e+01 4.51681e+00 155 2019 3 8.51523e+00 3.99199e+00 603 2019 4 5.10687e+00 1.89772e+00 413 2019 5 2.29973e+00 7.61261e-01 524 2019 6 3.64396e+00 1.13537e+00 173 2019 7 2.22311e+00 1.41285e+00 315 2019 8 2.23392e+00 1.58203e+00 351 2019 9 2.08033e+00 1.43620e+00 304 2019 10 2.46895e+00 1.42331e+00 495 2019 11 1.28057e+00 8.57992e-01 701 2019 12 3.10691e+00 1.83894e+00 555 2020 1 1.96076e+00 9.41728e-01 622 2020 2 1.81542e+00 1.21575e+00 511 2020 3 1.45057e+00 5.83763e-01 529 2020 4 2.30513e+00 8.14587e-01 492 2020 5 1.09825e+00 7.32917e-01 563 2020 6 1.78614e+00 3.10315e+00 262 2020 7 2.83180e+00 1.49385e+00 138 2020 8 1.58793e+00 1.15110e+00 145 2020 9 5.82655e+00 2.42380e+00 101 2020 10 5.21826e+00 3.72054e+00 438 2020 11 2.27316e+00 1.26237e+00 638 2020 12 2.76680e+00 1.19369e+00 550 2021 1 5.13196e+00 3.44069e+00 439 2021 2 4.71374e+00 3.75407e+00 555 2021 3 3.00499e+00 9.97722e-01 463 2021 4 3.33296e+00 9.23415e-01 306 2021 5 1.81091e+00 1.40717e+00 411 2021 6 1.81516e+00 9.21472e-01 192 2021 7 1.71805e+00 1.06805e+00 64 2021 8 2.86754e+01 8.75909e+00 52 2021 9 1.20503e+01 8.27170e+00 514 2021 10 6.10090e+00 3.04911e+00 410 2021 11 5.41332e+00 1.76898e+00 736 2021 12 3.79524e+00 1.89090e+00 621 2022 1 4.97083e+00 3.34215e+00 855 2022 2 2.42147e+00 1.04583e+00 723 2022 3 3.67530e+00 3.62188e+00 663 2022 4 4.55778e+00 5.92469e-01 64 2022 5 3.67579e+00 1.76156e+00 309 2022 6 4.48882e+00 5.99949e+00 218 2022 7 1.02375e+00 9.73797e-01 168 2022 8 2.03274e+00 9.00733e-01 448 2022 9 1.76390e+00 5.99577e-01 287 2022 10 1.73515e+00 2.47825e+00 1103 2022 11 1.95985e+00 1.75597e+00 577 2022 12 1.96437e+00 1.00412e+00 933 2023 1 2.29456e+00 1.04230e+00 832 2023 2 2.05772e+00 8.64996e-01 529 2023 3 3.51732e+00 1.16573e+00 832 2023 4 3.11204e+00 1.45172e+00 198 2023 5 3.67149e+00 2.06040e+00 384 2023 6 2.90832e+00 2.75336e+00 192 2023 7 7.99360e+00 3.97335e+00 155 2023 8 4.25005e+00 3.04624e+00 337 2023 9 5.53174e+00 4.53048e+00 346 2023 10 5.30505e+00 4.38423e+00 444 2023 11 2.53140e+00 1.66869e+00 758 2023 12 5.13885e+00 2.35681e+00 287 2024 1 1.06082e+01 4.21477e+00 460 2024 2 7.08206e+00 4.91530e+00 465 2024 3 8.67677e+00 5.37373e+00 329 2024 4 nan nan 0