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 3.53585e-02 3.96408e-03 260 2002 8 3.42729e-02 4.38980e-03 266 2002 9 4.06194e-02 3.39826e-03 217 2002 10 4.61885e-02 1.15520e-02 505 2002 11 4.43623e-02 1.18084e-02 959 2002 12 3.76681e-02 2.56717e-03 940 2003 1 3.73747e-02 5.12584e-03 657 2003 2 3.46080e-02 3.01268e-03 325 2003 3 3.13776e-02 4.03614e-03 786 2003 4 3.10548e-02 2.10848e-03 248 2003 5 2.88276e-02 4.49898e-03 203 2003 6 5.80281e-02 1.61859e-03 64 2003 7 3.96016e-02 2.16042e-03 124 2003 8 3.42969e-02 2.20135e-03 256 2003 9 3.23789e-02 3.47348e-03 492 2003 10 3.67432e-02 6.99959e-03 447 2003 11 3.64974e-02 4.16486e-03 505 2003 12 3.98201e-02 3.88456e-03 497 2004 1 3.79991e-02 2.32502e-03 920 2004 2 3.54221e-02 3.12262e-03 570 2004 3 3.24210e-02 3.85870e-03 581 2004 4 3.17031e-02 3.83164e-03 640 2004 5 3.16019e-02 4.47081e-03 105 2004 6 3.17183e-02 3.29423e-03 208 2004 7 3.91994e-02 9.50011e-03 321 2004 8 3.40680e-02 2.30006e-03 250 2004 9 3.60313e-02 3.07008e-03 217 2004 10 3.64419e-02 1.68358e-02 544 2004 11 3.82263e-02 2.99661e-03 769 2004 12 3.88263e-02 2.64438e-03 1101 2005 1 3.69284e-02 1.74528e-03 852 2005 2 3.46844e-02 3.80043e-03 927 2005 3 2.98227e-02 4.33474e-03 616 2005 4 2.83032e-02 2.95957e-03 570 2005 5 3.02792e-02 5.69640e-03 288 2005 6 nan nan 0 2005 7 3.57843e-02 1.94247e-03 140 2005 8 3.82582e-02 3.05383e-03 134 2005 9 3.24780e-02 3.86199e-03 264 2005 10 3.74798e-02 3.23994e-03 178 2005 11 3.73367e-02 3.54927e-03 670 2005 12 3.77760e-02 2.16702e-02 1007 2006 1 3.45538e-02 2.62179e-03 433 2006 2 3.44903e-02 4.09199e-03 893 2006 3 3.40707e-02 3.24968e-03 826 2006 4 3.34273e-02 4.64893e-03 256 2006 5 3.22717e-02 4.77176e-03 371 2006 6 3.26469e-02 2.99462e-04 64 2006 7 3.03012e-02 4.35724e-03 257 2006 8 nan nan 0 2006 9 3.55009e-02 3.63701e-03 448 2006 10 3.16148e-02 2.87107e-03 256 2006 11 3.56628e-02 3.88025e-03 841 2006 12 3.80845e-02 1.95204e-03 786 2007 1 3.70603e-02 3.56999e-03 1218 2007 2 3.37085e-02 2.31862e-03 448 2007 3 3.18812e-02 3.57042e-03 382 2007 4 3.23919e-02 5.63472e-03 396 2007 5 3.39726e-02 1.69198e-03 73 2007 6 3.26832e-02 5.17297e-03 334 2007 7 3.34936e-02 5.68375e-03 109 2007 8 3.37917e-02 5.10558e-03 241 2007 9 3.13717e-02 7.06567e-03 212 2007 10 3.66768e-02 3.50657e-03 237 2007 11 3.63807e-02 3.90415e-03 539 2007 12 4.11450e-02 3.00213e-03 832 2008 1 3.57479e-02 2.63115e-03 1024 2008 2 3.11784e-02 3.05752e-03 730 2008 3 3.05524e-02 2.25281e-03 576 2008 4 3.29133e-02 6.78386e-03 256 2008 5 3.46286e-02 3.17179e-03 308 2008 6 3.71937e-02 1.06103e-03 192 2008 7 4.00695e-02 4.26497e-03 256 2008 8 3.17988e-02 6.15278e-03 320 2008 9 3.73953e-02 1.13012e-03 256 2008 10 3.51602e-02 7.20237e-03 703 2008 11 3.54455e-02 2.95498e-03 901 2008 12 3.46299e-02 2.28742e-03 1142 2009 1 3.27298e-02 2.43072e-03 803 2009 2 3.03852e-02 3.05878e-03 485 2009 3 3.16863e-02 3.72743e-03 663 2009 4 3.19816e-02 5.65629e-03 576 2009 5 5.53231e-02 1.64300e-02 320 2009 6 5.52625e-02 1.67290e-02 128 2009 7 3.83988e-02 2.76551e-03 164 2009 8 3.23482e-02 3.83047e-03 448 2009 9 3.71662e-02 4.86897e-03 428 2009 10 3.87729e-02 6.73707e-03 709 2009 11 3.69121e-02 2.06517e-03 788 2009 12 3.85229e-02 2.10136e-03 620 2010 1 3.61284e-02 4.11459e-03 592 2010 2 3.27068e-02 3.70813e-03 723 2010 3 2.99938e-02 2.48132e-03 448 2010 4 3.36563e-02 1.91835e-03 309 2010 5 3.47254e-02 2.77196e-03 228 2010 6 3.14198e-02 2.17251e-03 192 2010 7 4.48797e-02 1.51310e-02 128 2010 8 5.14543e-02 4.40460e-03 199 2010 9 4.62506e-02 6.60072e-03 166 2010 10 3.62201e-02 3.91165e-03 299 2010 11 4.55332e-02 5.30281e-03 704 2010 12 4.31256e-02 2.78123e-03 640 2011 1 3.66434e-02 3.54720e-03 576 2011 2 3.26763e-02 3.49244e-03 679 2011 3 3.49418e-02 2.57400e-02 924 2011 4 3.10233e-02 4.21230e-03 636 2011 5 3.40164e-02 4.57294e-03 256 2011 6 3.19172e-02 2.58560e-03 128 2011 7 3.46927e-02 1.65792e-03 192 2011 8 3.65212e-02 2.07193e-03 264 2011 9 3.64134e-02 5.71356e-03 419 2011 10 3.44569e-02 3.07598e-03 397 2011 11 3.70885e-02 2.93590e-03 841 2011 12 3.65241e-02 2.74476e-03 690 2012 1 3.56602e-02 2.45085e-03 1133 2012 2 3.35175e-02 3.60667e-03 844 2012 3 3.18454e-02 2.00291e-02 648 2012 4 3.12454e-02 8.42186e-03 370 2012 5 3.42681e-02 4.21948e-03 288 2012 6 3.14844e-02 1.96230e-04 64 2012 7 2.88541e-02 6.23088e-03 170 2012 8 4.37688e-02 6.83074e-03 128 2012 9 3.82763e-02 5.74429e-03 464 2012 10 3.53784e-02 3.05834e-03 399 2012 11 3.63792e-02 3.83595e-03 779 2012 12 3.98069e-02 3.01446e-03 780 2013 1 3.74694e-02 3.09901e-03 631 2013 2 3.21726e-02 3.60886e-03 694 2013 3 2.90147e-02 2.82122e-03 681 2013 4 4.12144e-02 3.01292e-03 320 2013 5 3.65228e-02 2.77337e-03 189 2013 6 2.54800e-02 9.79794e-05 5 2013 7 3.91306e-02 2.86170e-03 320 2013 8 3.80227e-02 1.97238e-03 256 2013 9 3.72448e-02 6.46284e-03 125 2013 10 3.40062e-02 2.41427e-03 320 2013 11 4.58218e-02 4.22250e-03 836 2013 12 4.07785e-02 6.18245e-03 326 2014 1 3.57656e-02 2.78996e-03 849 2014 2 3.28313e-02 3.39189e-03 824 2014 3 3.06693e-02 2.06443e-03 456 2014 4 3.13720e-02 2.96701e-03 336 2014 5 2.83965e-02 3.29811e-03 227 2014 6 3.01352e-02 5.89931e-03 256 2014 7 3.01636e-02 2.57392e-03 264 2014 8 4.94182e-02 8.07863e-03 88 2014 9 3.22176e-02 3.90325e-03 204 2014 10 4.27003e-02 7.88757e-03 576 2014 11 4.08462e-02 6.15629e-03 848 2014 12 3.70085e-02 3.18925e-03 685 2015 1 3.56862e-02 1.75943e-03 608 2015 2 3.20359e-02 3.16613e-03 675 2015 3 3.25582e-02 3.39125e-03 704 2015 4 2.96091e-02 4.93353e-03 569 2015 5 3.56000e-02 0.00000e+00 2 2015 6 nan nan 0 2015 7 5.02063e-02 1.21808e-03 64 2015 8 4.09786e-02 3.90854e-03 448 2015 9 3.73680e-02 2.68543e-03 338 2015 10 3.50987e-02 2.95472e-03 636 2015 11 3.53023e-02 5.05635e-03 428 2015 12 3.57487e-02 2.92441e-03 651 2016 1 3.74313e-02 2.67035e-03 1047 2016 2 3.21065e-02 8.95741e-03 890 2016 3 3.20012e-02 4.26436e-03 320 2016 4 3.21293e-02 2.27765e-03 433 2016 5 3.99882e-02 5.53176e-03 289 2016 6 3.38598e-02 2.66140e-03 194 2016 7 3.63521e-02 3.05242e-03 192 2016 8 3.84063e-02 9.21066e-03 190 2016 9 3.48460e-02 5.05685e-03 448 2016 10 3.54101e-02 2.84500e-03 357 2016 11 3.65820e-02 1.46380e-03 323 2016 12 3.79411e-02 2.16473e-03 829 2017 1 4.01134e-02 2.78494e-03 935 2017 2 3.22034e-02 4.46327e-03 955 2017 3 3.01204e-02 3.63504e-03 530 2017 4 3.11663e-02 5.25422e-03 576 2017 5 3.14191e-02 3.67483e-03 314 2017 6 3.95141e-02 1.25573e-02 384 2017 7 4.48900e-02 8.36507e-03 340 2017 8 5.49601e-02 7.54601e-03 311 2017 9 4.23036e-02 1.39920e-03 193 2017 10 3.51213e-02 3.30679e-03 249 2017 11 3.95062e-02 4.26770e-03 484 2017 12 3.78428e-02 2.25694e-03 940 2018 1 3.47901e-02 2.48298e-03 749 2018 2 3.47792e-02 3.47545e-03 788 2018 3 3.19816e-02 4.13439e-03 673 2018 4 3.18962e-02 3.25856e-03 320 2018 5 3.14481e-02 5.51126e-03 324 2018 6 3.43555e-02 3.96817e-03 319 2018 7 3.78490e-02 1.65978e-03 102 2018 8 3.63918e-02 1.13971e-02 341 2018 9 4.36074e-02 5.93265e-03 407 2018 10 4.74928e-02 1.18845e-02 541 2018 11 4.77934e-02 6.73661e-03 905 2018 12 4.04870e-02 1.07463e-02 759 2019 1 3.57022e-02 3.34513e-03 787 2019 2 3.17346e-02 4.58153e-03 725 2019 3 2.96573e-02 3.65800e-03 621 2019 4 3.19333e-02 2.91114e-03 480 2019 5 2.94375e-02 1.51095e-03 128 2019 6 3.15012e-02 1.57236e-03 172 2019 7 4.75225e-02 7.19059e-03 333 2019 8 3.84481e-02 1.33126e-03 129 2019 9 4.11636e-02 2.96993e-03 11 2019 10 3.55531e-02 4.25238e-03 392 2019 11 3.83516e-02 3.50941e-03 900 2019 12 3.75492e-02 2.16713e-03 709 2020 1 3.47874e-02 3.31169e-03 716 2020 2 3.19978e-02 2.96762e-03 646 2020 3 3.22563e-02 3.47775e-03 650 2020 4 2.85921e-02 4.77030e-03 558 2020 5 3.09658e-02 5.44936e-03 269 2020 6 3.02907e-02 3.59683e-03 496 2020 7 3.35628e-02 4.95426e-03 285 2020 8 3.56453e-02 6.81091e-04 128 2020 9 3.40187e-02 2.37606e-03 320 2020 10 3.49256e-02 1.50932e-03 301 2020 11 3.74622e-02 1.88684e-03 585 2020 12 3.89855e-02 2.66714e-03 1049 2021 1 3.79693e-02 3.40875e-03 735 2021 2 3.19813e-02 3.09205e-03 512 2021 3 3.07908e-02 3.67964e-03 650 2021 4 3.03523e-02 3.49822e-03 512 2021 5 3.28504e-02 4.82102e-03 464 2021 6 5.69391e-02 8.94349e-03 256 2021 7 4.46255e-02 5.99016e-03 196 2021 8 4.51094e-02 7.59563e-03 256 2021 9 3.86815e-02 4.75190e-03 611 2021 10 5.28236e-02 1.55423e-02 305 2021 11 4.45868e-02 4.75979e-03 745 2021 12 4.56287e-02 5.71705e-03 1060 2022 1 3.48809e-02 2.14607e-03 845 2022 2 3.03523e-02 2.10811e-03 931 2022 3 2.95841e-02 2.23634e-03 552 2022 4 3.02094e-02 1.88611e-03 128 2022 5 3.19812e-02 1.59468e-03 149 2022 6 2.87568e-02 1.58163e-03 384 2022 7 3.00484e-02 3.05197e-03 256 2022 8 3.18668e-02 4.70006e-03 377 2022 9 3.41484e-02 6.01315e-03 256 2022 10 3.41727e-02 3.08370e-03 417 2022 11 3.90759e-02 3.65220e-03 601 2022 12 3.63436e-02 3.24594e-03 1116 2023 1 3.45227e-02 3.28320e-03 1094 2023 2 3.34929e-02 2.97579e-02 659 2023 3 2.93928e-02 1.92234e-03 640 2023 4 3.27537e-02 5.75086e-03 544 2023 5 3.22615e-02 2.63631e-03 400 2023 6 3.28051e-02 3.50868e-03 118 2023 7 3.78990e-02 3.69560e-03 192 2023 8 3.78562e-02 3.89023e-03 384 2023 9 3.41281e-02 2.27789e-03 384 2023 10 3.36327e-02 2.08849e-03 489 2023 11 3.59824e-02 3.63174e-03 590 2023 12 3.58112e-02 3.02567e-03 911 2024 1 3.49967e-02 1.45359e-02 853 2024 2 3.03450e-02 2.16238e-03 673 2024 3 2.99191e-02 2.08025e-03 512 2024 4 2.94250e-02 2.16010e-03 384 2024 5 3.53984e-02 2.58262e-03 365 2024 6 3.46214e-02 4.35364e-04 28 2024 7 4.70457e-02 4.25121e-02 184 2024 8 3.94414e-02 2.60372e-03 256 2024 9 3.61679e-02 4.45240e-03 268 2024 10 4.08691e-02 3.12035e-03 463 2024 11 4.15875e-02 2.33543e-03 128