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 8.97321e-03 7.69330e-03 121 2002 8 1.10675e-02 9.05311e-03 417 2002 9 2.36179e-02 1.28393e-02 357 2002 10 3.60426e-02 3.36356e-02 750 2002 11 4.07463e-02 3.40060e-02 786 2002 12 3.20136e-02 2.79918e-02 620 2003 1 3.62075e-02 2.05744e-02 939 2003 2 2.37280e-02 1.86039e-02 512 2003 3 1.23460e-01 9.55504e-02 221 2003 4 2.42700e-01 1.13768e-01 157 2003 5 6.67479e-02 5.35208e-02 196 2003 6 2.88311e-02 1.76459e-02 204 2003 7 7.46014e-02 5.16290e-02 171 2003 8 4.97864e-02 5.89221e-02 312 2003 9 3.43218e-02 4.56460e-02 490 2003 10 3.58329e-02 4.09699e-02 889 2003 11 2.68368e-02 3.28358e-02 1060 2003 12 4.59642e-02 4.90394e-02 896 2004 1 2.50454e-02 2.24322e-02 733 2004 2 2.63080e-02 1.51758e-02 384 2004 3 2.99598e-02 3.60374e-02 769 2004 4 2.17828e-02 1.51073e-02 579 2004 5 1.46815e-02 1.26716e-02 566 2004 6 1.27311e-02 1.03426e-02 395 2004 7 1.47448e-02 2.15426e-02 444 2004 8 1.65119e-02 1.38067e-02 470 2004 9 9.33075e-02 9.28510e-02 287 2004 10 7.63468e-02 3.53804e-02 141 2004 11 2.94100e-01 8.12062e-02 171 2004 12 1.50628e-01 1.07025e-01 434 2005 1 8.21897e-02 4.84449e-02 764 2005 2 6.90195e-02 5.04721e-02 612 2005 3 7.84337e-02 7.12242e-02 453 2005 4 9.15208e-02 7.37959e-02 457 2005 5 8.84252e-02 8.23920e-02 246 2005 6 5.94875e-02 5.44473e-02 448 2005 7 1.52086e-01 1.17710e-01 222 2005 8 5.58363e-02 6.00476e-02 348 2005 9 4.80382e-02 2.88892e-02 375 2005 10 3.58348e-02 6.32296e-02 927 2005 11 2.33553e-02 1.50581e-02 1020 2005 12 5.19362e-02 5.32979e-02 1052 2006 1 8.68703e-02 6.71095e-02 549 2006 2 1.76505e-01 1.17134e-01 550 2006 3 7.19898e-02 7.20660e-02 1045 2006 4 1.56358e-02 1.30153e-02 282 2006 5 1.55270e-02 1.72882e-02 485 2006 6 1.29541e-02 7.10475e-03 387 2006 7 1.28004e-02 7.89289e-03 270 2006 8 1.20029e-02 5.65509e-03 320 2006 9 2.22244e-02 9.52553e-03 576 2006 10 2.36660e-02 2.12162e-02 882 2006 11 3.19120e-02 2.91586e-02 879 2006 12 1.01961e-02 6.96208e-03 452 2007 1 1.88977e-02 1.73748e-02 384 2007 2 1.54520e-02 1.49833e-02 704 2007 3 9.92622e-03 1.02234e-02 1195 2007 4 1.49318e-02 1.45259e-02 480 2007 5 8.16920e-03 2.96376e-03 131 2007 6 6.48870e-03 4.22053e-03 388 2007 7 8.13703e-03 2.35677e-03 448 2007 8 1.38920e-02 8.09625e-03 537 2007 9 1.66749e-02 5.41143e-03 420 2007 10 1.83894e-02 1.94612e-02 669 2007 11 1.68969e-02 1.64472e-02 1194 2007 12 2.42530e-02 3.86205e-02 766 2008 1 3.03220e-02 3.69925e-02 634 2008 2 2.32639e-02 1.62294e-02 864 2008 3 1.08142e-01 1.06028e-01 741 2008 4 3.49959e-02 4.68334e-02 559 2008 5 5.56113e-02 5.26972e-02 512 2008 6 1.24383e-02 7.73010e-03 367 2008 7 7.97515e-03 3.00027e-03 509 2008 8 1.03010e-02 5.02352e-03 256 2008 9 6.09845e-02 5.13300e-02 501 2008 10 3.42552e-02 2.38180e-02 894 2008 11 1.97796e-02 2.20078e-02 1013 2008 12 4.44891e-02 5.04223e-02 960 2009 1 4.19400e-02 3.42305e-02 640 2009 2 3.56078e-02 3.41102e-02 1024 2009 3 2.34225e-02 3.64719e-02 956 2009 4 5.18845e-02 5.40354e-02 520 2009 5 2.85685e-02 5.28315e-02 287 2009 6 1.49893e-02 4.69942e-03 97 2009 7 1.52057e-02 1.99032e-02 192 2009 8 2.07728e-02 2.59149e-02 531 2009 9 1.58265e-02 1.48063e-02 740 2009 10 1.58972e-02 1.11210e-02 811 2009 11 1.99508e-02 2.69530e-02 643 2009 12 4.03805e-02 2.80831e-02 192 2010 1 4.69731e-02 5.61222e-02 926 2010 2 8.99764e-02 4.45893e-02 708 2010 3 1.36105e-01 8.61817e-02 939 2010 4 1.26349e-01 1.51330e-01 273 2010 5 1.77765e-02 1.78576e-02 510 2010 6 1.11706e-02 8.22850e-03 558 2010 7 2.46476e-02 1.63271e-02 345 2010 8 1.06257e-02 7.64313e-03 162 2010 9 2.29742e-02 2.11276e-02 484 2010 10 1.46812e-02 9.59916e-03 1408 2010 11 1.43583e-02 2.04045e-02 1071 2010 12 3.47660e-02 3.38394e-02 909 2011 1 2.57616e-02 2.57571e-02 700 2011 2 9.14352e-03 5.82996e-03 768 2011 3 1.30555e-02 2.06822e-02 814 2011 4 9.27036e-03 6.40254e-03 896 2011 5 6.57368e-03 4.31603e-03 739 2011 6 5.11697e-03 1.73711e-03 256 2011 7 7.65122e-03 3.86682e-03 364 2011 8 9.50735e-03 3.95003e-03 616 2011 9 1.14196e-02 9.88474e-03 740 2011 10 3.00587e-02 4.79460e-02 975 2011 11 1.32528e-02 1.09823e-02 1150 2011 12 1.38564e-02 1.22617e-02 1088 2012 1 2.12124e-02 2.08258e-02 1009 2012 2 2.49672e-02 2.74261e-02 306 2012 3 1.47621e-02 1.97395e-02 879 2012 4 7.93011e-03 4.73763e-03 857 2012 5 9.12033e-03 1.32713e-02 347 2012 6 9.90569e-03 2.84210e-03 69 2012 7 2.68007e-02 3.66173e-02 215 2012 8 6.64949e-02 4.85454e-02 335 2012 9 7.43440e-02 6.29133e-02 413 2012 10 6.46337e-02 5.75579e-02 615 2012 11 2.25158e-02 3.03623e-02 1024 2012 12 7.93660e-02 9.94724e-02 641 2013 1 3.34893e-02 5.46863e-02 753 2013 2 3.29311e-02 2.08850e-02 630 2013 3 2.40134e-02 2.95019e-02 640 2013 4 5.67383e-02 6.09589e-02 530 2013 5 1.64293e-02 1.71314e-02 433 2013 6 3.23735e-02 3.79963e-02 559 2013 7 6.83518e-02 3.90744e-02 63 2013 8 9.64646e-02 7.11165e-02 156 2013 9 8.76306e-02 7.89579e-02 684 2013 10 3.45240e-02 2.48465e-02 941 2013 11 2.59394e-02 1.86377e-02 405 2013 12 1.97598e-02 2.65138e-02 703 2014 1 3.41392e-02 1.67711e-02 448 2014 2 2.63192e-02 2.06889e-02 632 2014 3 3.66843e-02 4.15397e-02 571 2014 4 6.93272e-02 1.10415e-01 295 2014 5 5.91973e-02 3.15499e-02 128 2014 6 8.87769e-02 9.41862e-02 331 2014 7 3.76699e-02 3.46566e-02 632 2014 8 1.02137e-02 6.78705e-03 333 2014 9 1.24114e-02 5.63524e-03 299 2014 10 3.54707e-02 6.28801e-02 1335 2014 11 2.07835e-02 2.24193e-02 1102 2014 12 1.73023e-02 3.11891e-02 599 2015 1 2.73807e-02 3.78172e-02 832 2015 2 2.12587e-02 1.25827e-02 768 2015 3 7.10438e-02 1.20963e-01 416 2015 4 2.90186e-02 2.61696e-02 149 2015 5 1.70996e-02 1.21745e-02 530 2015 6 1.98298e-02 1.31055e-02 359 2015 7 1.42527e-02 5.04031e-03 192 2015 8 3.41871e-02 3.06077e-02 404 2015 9 1.57266e-02 1.00372e-02 190 2015 10 1.59272e-02 1.74825e-02 741 2015 11 5.31283e-02 5.90586e-02 705 2015 12 2.12490e-02 2.32123e-02 448 2016 1 4.05443e-02 3.05020e-02 546 2016 2 6.98252e-02 8.64239e-02 1239 2016 3 4.42606e-02 5.75409e-02 750 2016 4 2.51300e-02 1.62783e-02 384 2016 5 1.24589e-02 1.22991e-02 703 2016 6 7.14011e-03 5.38629e-03 642 2016 7 1.23651e-02 1.35695e-02 1005 2016 8 2.28509e-02 2.11456e-02 700 2016 9 3.17162e-02 2.68337e-02 835 2016 10 3.88031e-02 6.36145e-02 1062 2016 11 1.12563e-02 1.96816e-02 956 2016 12 1.72739e-02 2.49695e-02 871 2017 1 3.68683e-02 4.24692e-02 684 2017 2 3.23392e-02 3.63112e-02 1068 2017 3 1.85397e-02 1.79048e-02 1083 2017 4 1.37318e-02 1.21831e-02 703 2017 5 1.81008e-02 1.60799e-02 532 2017 6 1.07623e-02 6.31058e-03 345 2017 7 1.47910e-02 4.92508e-03 108 2017 8 2.30495e-02 1.50269e-02 532 2017 9 2.19618e-02 1.98685e-02 517 2017 10 1.03484e-01 1.15124e-01 250 2017 11 1.40456e-02 1.37583e-02 1246 2017 12 1.36199e-02 1.03340e-02 687 2018 1 1.94586e-02 1.59528e-02 640 2018 2 2.25684e-02 1.46695e-02 635 2018 3 2.66926e-02 2.83986e-02 794 2018 4 1.20171e-02 8.43375e-03 608 2018 5 1.60446e-02 1.11125e-02 424 2018 6 1.43621e-02 8.21245e-03 320 2018 7 3.01295e-02 4.33617e-02 250 2018 8 1.12746e-01 1.15308e-01 136 2018 9 1.80310e-02 1.51174e-02 733 2018 10 4.64480e-02 3.78031e-02 1026 2018 11 6.01579e-02 3.55475e-02 189 2018 12 4.93437e-02 3.25432e-02 779 2019 1 1.72747e-01 1.15593e-01 568 2019 2 2.17016e-01 1.00118e-01 225 2019 3 5.88306e-02 6.79475e-02 700 2019 4 4.67148e-02 2.92223e-02 425 2019 5 1.02322e-02 1.39008e-02 742 2019 6 1.98459e-02 2.41187e-02 147 2019 7 8.07907e-03 4.07712e-03 320 2019 8 1.06417e-01 1.54729e-01 356 2019 9 1.44514e-02 1.38007e-02 643 2019 10 2.81840e-02 2.62543e-02 586 2019 11 1.24676e-02 1.16549e-02 887 2019 12 3.60508e-02 3.51867e-02 642 2020 1 2.24310e-02 2.26042e-02 715 2020 2 3.29506e-02 1.85252e-02 543 2020 3 2.31401e-02 4.25889e-02 691 2020 4 6.48332e-02 5.35537e-02 443 2020 5 1.27969e-02 9.23567e-03 781 2020 6 2.06243e-02 4.89419e-02 503 2020 7 3.26307e-02 2.17114e-02 254 2020 8 3.30528e-02 3.39807e-02 250 2020 9 4.41845e-02 2.26062e-02 321 2020 10 4.67070e-02 4.96768e-02 889 2020 11 3.77418e-02 5.40649e-02 1002 2020 12 2.41537e-02 2.59030e-02 692 2021 1 1.00358e-01 8.71831e-02 438 2021 2 6.71614e-02 7.63734e-02 487 2021 3 2.47700e-02 3.72407e-02 480 2021 4 2.42974e-02 2.35786e-02 564 2021 5 3.31397e-02 3.56956e-02 625 2021 6 2.64475e-02 1.94995e-02 268 2021 7 1.76993e-02 4.22823e-03 64 2021 8 1.74811e-01 1.34835e-01 154 2021 9 1.71608e-01 1.42866e-01 395 2021 10 7.09192e-02 7.43795e-02 635 2021 11 4.77347e-02 3.67789e-02 960 2021 12 4.13695e-02 3.55337e-02 661 2022 1 5.78322e-02 2.97757e-02 706 2022 2 3.63880e-02 3.25565e-02 1024 2022 3 4.18606e-02 5.39174e-02 771 2022 4 1.98604e-01 1.28375e-01 30 2022 5 2.24695e-02 2.29991e-02 334 2022 6 1.10690e-02 8.04139e-03 354 2022 7 7.14431e-03 6.19914e-03 235 2022 8 1.61265e-02 1.71071e-02 444 2022 9 2.20927e-02 1.17234e-02 294 2022 10 6.65509e-03 5.79117e-03 1206 2022 11 1.70080e-02 2.53809e-02 514 2022 12 2.42641e-02 3.40102e-02 905 2023 1 1.57462e-02 1.39264e-02 874 2023 2 1.14111e-02 6.09647e-03 612 2023 3 2.63438e-02 2.39398e-02 830 2023 4 2.26841e-02 1.88902e-02 384 2023 5 2.09177e-02 2.04285e-02 340 2023 6 6.55063e-03 9.08856e-03 161 2023 7 8.30911e-03 9.02333e-03 419 2023 8 1.40114e-02 2.37124e-02 470 2023 9 2.52867e-02 3.84359e-02 587 2023 10 2.13426e-02 2.16157e-02 491 2023 11 1.60581e-02 2.18505e-02 703 2023 12 5.59681e-02 3.96805e-02 334 2024 1 1.49017e-01 1.10534e-01 581 2024 2 3.45314e-02 3.51860e-02 642 2024 3 2.93100e-02 1.85286e-02 425 2024 4 nan nan 0