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 1.14787e-02 3.13506e-03 192 2002 8 8.54757e-03 3.03002e-04 64 2002 9 1.61955e-02 4.83534e-03 128 2002 10 1.23916e-02 3.98929e-03 289 2002 11 1.22774e-02 1.88050e-02 719 2002 12 1.09993e-02 5.71571e-03 808 2003 1 8.46075e-03 1.63272e-03 641 2003 2 7.52882e-03 1.15821e-03 287 2003 3 7.29624e-03 6.31070e-04 318 2003 4 7.52285e-03 9.72667e-04 153 2003 5 5.39555e-03 6.42047e-05 64 2003 6 6.49775e-03 7.80517e-04 83 2003 7 1.62696e-02 3.22623e-04 64 2003 8 nan nan 0 2003 9 1.22945e-02 7.94569e-03 421 2003 10 1.13743e-02 5.24397e-03 576 2003 11 1.63194e-02 6.87309e-03 496 2003 12 1.09293e-02 5.07868e-02 560 2004 1 1.06680e-02 2.36604e-03 905 2004 2 1.03741e-02 2.05087e-03 645 2004 3 9.80470e-03 1.33741e-03 384 2004 4 2.14294e-03 1.16456e-02 367 2004 5 1.07644e-02 5.70246e-04 72 2004 6 7.09514e-03 6.77050e-05 9 2004 7 1.68963e-02 2.73615e-03 26 2004 8 1.14659e-02 1.74990e-03 43 2004 9 1.27403e-02 2.70378e-03 179 2004 10 1.46829e-02 5.47333e-03 424 2004 11 1.37345e-02 6.20955e-03 704 2004 12 1.13798e-02 3.61166e-03 948 2005 1 1.03815e-02 1.11639e-02 513 2005 2 7.39711e-03 1.98801e-02 580 2005 3 6.23623e-03 9.23679e-03 576 2005 4 8.21640e-03 8.72012e-04 239 2005 5 6.96554e-03 6.79305e-03 285 2005 6 nan nan 0 2005 7 1.61694e-02 1.92591e-03 70 2005 8 6.31234e-03 7.95727e-03 101 2005 9 1.07951e-02 2.64657e-03 135 2005 10 7.92497e-03 9.06840e-04 128 2005 11 1.10436e-02 2.75022e-03 622 2005 12 1.25984e-02 2.96879e-03 863 2006 1 1.02378e-02 1.97606e-03 565 2006 2 1.08437e-02 7.57508e-03 436 2006 3 1.06903e-02 3.63026e-03 512 2006 4 1.09171e-02 2.06208e-03 512 2006 5 1.18732e-02 4.76035e-03 321 2006 6 nan nan 0 2006 7 9.93983e-03 1.16512e-02 152 2006 8 nan nan 0 2006 9 1.00602e-02 3.13479e-03 224 2006 10 9.97856e-03 1.50796e-03 385 2006 11 9.99653e-03 3.47546e-03 406 2006 12 1.04594e-02 1.70895e-03 561 2007 1 1.32048e-02 2.92667e-03 858 2007 2 9.13616e-03 1.11251e-03 804 2007 3 5.14305e-03 9.29771e-03 404 2007 4 9.40640e-03 1.47234e-03 275 2007 5 8.10514e-03 1.01693e-03 192 2007 6 6.36255e-03 4.67339e-04 141 2007 7 nan nan 0 2007 8 8.37914e-03 1.44265e-04 64 2007 9 1.13670e-02 3.77036e-03 128 2007 10 1.02002e-02 8.03519e-03 219 2007 11 1.38589e-02 3.22537e-03 402 2007 12 6.12388e-03 2.20473e-02 702 2008 1 9.07216e-03 1.31170e-02 1019 2008 2 9.37677e-03 3.44747e-03 410 2008 3 8.19864e-03 1.28324e-03 528 2008 4 4.68807e-03 9.31337e-03 309 2008 5 8.26114e-03 7.36984e-04 366 2008 6 7.55802e-03 1.31887e-03 128 2008 7 9.99938e-03 2.72540e-04 70 2008 8 2.13717e-03 2.19196e-02 210 2008 9 1.56467e-02 3.93643e-03 139 2008 10 1.50844e-02 6.24004e-03 642 2008 11 1.11447e-02 8.28608e-03 541 2008 12 1.32404e-02 5.19639e-03 921 2009 1 7.00379e-03 1.03619e-02 921 2009 2 1.82525e-03 1.55959e-02 338 2009 3 9.21725e-03 2.36779e-03 610 2009 4 3.11636e-03 1.08203e-02 198 2009 5 1.47406e-02 6.77502e-03 115 2009 6 2.29703e-02 1.30960e-03 64 2009 7 1.25947e-02 1.06662e-02 103 2009 8 -2.22205e-03 1.60380e-02 198 2009 9 1.03382e-02 1.68331e-03 322 2009 10 1.07474e-02 1.90578e-02 464 2009 11 9.50996e-03 1.52330e-02 832 2009 12 9.55210e-03 8.51584e-03 861 2010 1 1.12939e-02 1.28208e-02 588 2010 2 7.85778e-03 1.25921e-02 512 2010 3 8.96472e-03 6.76070e-03 278 2010 4 -3.94546e-03 1.82072e-02 190 2010 5 1.18893e-02 3.55297e-04 7 2010 6 8.20112e-03 8.19620e-03 188 2010 7 1.02782e-02 2.57099e-04 64 2010 8 5.10857e-03 3.51384e-02 252 2010 9 2.43951e-02 8.40102e-03 65 2010 10 9.58515e-03 3.99217e-02 299 2010 11 7.17774e-03 2.65859e-02 639 2010 12 1.35168e-02 2.00875e-02 660 2011 1 1.15977e-02 6.95664e-03 677 2011 2 2.22863e-04 2.30268e-02 462 2011 3 1.51686e-03 1.71385e-02 934 2011 4 4.33433e-03 1.48755e-02 320 2011 5 8.91463e-03 9.33905e-04 414 2011 6 9.70900e-03 2.44757e-03 128 2011 7 7.90696e-03 4.06830e-04 64 2011 8 -2.27250e-02 2.27471e-02 85 2011 9 1.15539e-02 3.73683e-03 398 2011 10 9.88149e-03 1.12700e-03 394 2011 11 8.53348e-03 1.28606e-02 730 2011 12 9.86533e-03 1.22293e-03 944 2012 1 1.24086e-02 4.26452e-03 961 2012 2 2.26060e-03 1.67073e-02 512 2012 3 6.06999e-03 1.05974e-02 586 2012 4 1.02976e-02 2.03804e-03 387 2012 5 1.68746e-02 5.08835e-03 249 2012 6 8.66844e-03 7.34220e-05 64 2012 7 3.90886e-03 1.08481e-02 64 2012 8 1.08499e-02 1.99947e-04 64 2012 9 -1.73589e-02 3.28538e-02 235 2012 10 1.81771e-02 4.48601e-03 198 2012 11 1.10125e-02 2.35265e-03 513 2012 12 8.10059e-03 1.53886e-02 739 2013 1 1.29819e-02 6.32182e-03 683 2013 2 1.04510e-02 1.83849e-03 640 2013 3 -4.37423e-05 1.69564e-02 269 2013 4 1.23304e-02 2.96725e-03 65 2013 5 8.15656e-03 1.09097e-03 177 2013 6 nan nan 0 2013 7 9.42963e-03 2.36368e-03 192 2013 8 8.51110e-03 1.54632e-04 46 2013 9 6.83150e-03 2.85722e-02 314 2013 10 -9.43667e-04 1.87615e-02 80 2013 11 1.36030e-02 6.80384e-03 687 2013 12 1.47523e-02 3.14328e-03 666 2014 1 3.35287e-03 1.70202e-02 654 2014 2 1.07413e-02 1.04312e-03 320 2014 3 3.43339e-03 1.30787e-02 550 2014 4 7.90218e-03 8.87676e-04 156 2014 5 7.25389e-04 1.40981e-02 128 2014 6 9.14145e-03 1.67143e-04 64 2014 7 8.28983e-03 4.00832e-04 192 2014 8 1.55456e-02 4.25388e-04 18 2014 9 9.85146e-03 1.47413e-03 287 2014 10 2.32388e-03 2.31126e-02 440 2014 11 1.21111e-02 1.14334e-03 373 2014 12 9.45369e-03 1.42429e-02 819 2015 1 1.08209e-02 5.26148e-03 835 2015 2 8.26322e-03 1.24418e-02 409 2015 3 8.81557e-03 1.92026e-03 392 2015 4 7.58334e-03 1.90968e-03 263 2015 5 1.82860e-02 8.36568e-04 64 2015 6 nan nan 0 2015 7 nan nan 0 2015 8 -1.30374e-02 2.23723e-02 125 2015 9 1.40891e-02 3.60926e-03 268 2015 10 1.16600e-02 3.84146e-03 570 2015 11 1.37622e-02 2.67664e-03 322 2015 12 1.38891e-02 3.58311e-03 535 2016 1 1.37084e-02 2.81667e-03 803 2016 2 1.14393e-02 3.98909e-03 552 2016 3 3.42315e-03 1.10714e-02 257 2016 4 8.86869e-03 6.48036e-04 194 2016 5 1.09664e-02 1.02467e-03 128 2016 6 6.84100e-03 2.27662e-04 11 2016 7 nan nan 0 2016 8 1.03968e-02 1.81350e-02 74 2016 9 1.41426e-02 2.07485e-03 199 2016 10 1.34405e-02 1.33482e-02 553 2016 11 1.49318e-02 4.57115e-03 448 2016 12 8.85874e-03 1.18497e-02 936 2017 1 1.51237e-02 1.20468e-02 954 2017 2 1.28798e-02 6.06601e-03 399 2017 3 1.04215e-02 2.72352e-03 312 2017 4 9.77152e-03 9.31133e-04 245 2017 5 1.53727e-02 6.76203e-03 199 2017 6 7.99624e-03 2.11228e-03 91 2017 7 2.34894e-02 8.16110e-04 64 2017 8 -9.50811e-02 3.83757e-02 220 2017 9 2.11058e-02 6.43449e-03 84 2017 10 1.40163e-02 9.88909e-03 214 2017 11 1.57724e-02 1.13871e-02 403 2017 12 1.51955e-02 7.99165e-03 706 2018 1 1.14398e-02 3.09844e-03 610 2018 2 1.12467e-02 6.39274e-03 419 2018 3 6.07176e-03 1.62466e-02 704 2018 4 8.49653e-03 1.25425e-03 266 2018 5 5.91151e-03 2.14537e-04 74 2018 6 1.16078e-02 0.00000e+00 8 2018 7 1.13505e-02 3.87594e-04 62 2018 8 nan nan 0 2018 9 4.52583e-03 2.82878e-02 254 2018 10 3.80682e-03 2.74806e-02 465 2018 11 -4.67665e-03 1.23475e-01 649 2018 12 9.10685e-03 1.91748e-02 823 2019 1 1.25196e-02 3.06754e-03 719 2019 2 3.99825e-03 1.34538e-02 469 2019 3 9.03702e-03 6.47888e-04 375 2019 4 9.56441e-03 8.80360e-03 204 2019 5 8.63100e-03 1.90418e-03 104 2019 6 7.24073e-03 1.86443e-03 112 2019 7 1.03372e-02 2.88831e-04 29 2019 8 1.20903e-02 4.86538e-04 67 2019 9 1.44854e-02 7.40400e-03 227 2019 10 1.37368e-02 2.30033e-02 369 2019 11 1.14360e-03 8.54402e-02 780 2019 12 1.34846e-02 5.06573e-03 888 2020 1 1.17250e-02 4.60362e-03 923 2020 2 9.39108e-03 5.83171e-03 432 2020 3 8.78491e-03 4.39548e-03 469 2020 4 3.03803e-03 1.34693e-02 446 2020 5 1.13586e-02 3.52082e-03 290 2020 6 6.66227e-03 1.46638e-04 10 2020 7 7.57827e-03 8.06398e-04 128 2020 8 1.18931e-02 1.61997e-03 168 2020 9 7.25901e-03 1.08174e-02 462 2020 10 2.38694e-03 2.50084e-02 277 2020 11 7.65692e-03 1.92393e-02 360 2020 12 1.25278e-02 4.64890e-03 951 2021 1 7.76102e-03 1.47810e-02 733 2021 2 9.70909e-03 7.06194e-03 378 2021 3 1.02062e-02 2.31738e-03 504 2021 4 8.58513e-03 6.62370e-03 220 2021 5 1.79586e-03 1.33696e-02 264 2021 6 3.25618e-02 7.32098e-03 60 2021 7 1.83679e-02 6.05861e-04 64 2021 8 9.86085e-03 7.78447e-03 73 2021 9 1.22287e-02 4.46309e-03 335 2021 10 2.56080e-03 2.81764e-02 542 2021 11 1.51632e-02 1.64658e-02 744 2021 12 1.49707e-02 1.56004e-02 642 2022 1 9.63883e-03 2.13357e-03 859 2022 2 7.68759e-03 2.01895e-03 561 2022 3 7.03148e-03 2.02562e-03 121 2022 4 8.08599e-03 3.00455e-04 64 2022 5 7.94637e-03 1.47558e-03 121 2022 6 7.96513e-03 2.59065e-03 63 2022 7 nan nan 0 2022 8 7.67975e-03 2.67013e-04 64 2022 9 1.68303e-02 6.63367e-03 225 2022 10 1.34988e-02 2.46579e-03 311 2022 11 1.38199e-02 4.17473e-03 629 2022 12 1.29488e-02 2.74371e-03 948 2023 1 8.34526e-03 3.04873e-03 1009 2023 2 6.53830e-03 1.56772e-03 484 2023 3 6.42121e-03 1.66965e-03 591 2023 4 6.05205e-03 7.95443e-04 254 2023 5 5.65913e-03 7.51485e-04 320 2023 6 8.07814e-03 2.44540e-03 301 2023 7 nan nan 0 2023 8 8.21725e-03 3.04941e-04 64 2023 9 1.42187e-02 4.10442e-03 295 2023 10 6.93209e-03 1.86831e-03 328 2023 11 1.31826e-02 7.44753e-03 446 2023 12 1.17414e-02 2.59718e-03 842 2024 1 1.02358e-02 2.53963e-03 818 2024 2 1.10719e-02 4.53222e-03 902 2024 3 6.73436e-03 9.61689e-04 385 2024 4 5.78678e-03 6.87546e-04 128