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 3.65401e-02 3.89954e-03 364 2002 8 3.94344e-02 4.44984e-03 384 2002 9 5.46539e-02 8.44106e-03 516 2002 10 6.54909e-02 1.07115e-02 1082 2002 11 1.24008e-01 5.98515e-02 636 2002 12 9.11877e-02 1.92799e-02 665 2003 1 8.51936e-02 1.61966e-02 653 2003 2 7.17458e-02 7.50004e-03 535 2003 3 5.98296e-02 4.10346e-03 331 2003 4 7.29914e-02 1.89343e-02 560 2003 5 4.01569e-02 5.10536e-03 585 2003 6 3.54764e-02 4.79051e-03 309 2003 7 4.29907e-02 3.90975e-03 364 2003 8 4.02674e-02 3.39319e-03 457 2003 9 5.84369e-02 1.66036e-02 472 2003 10 7.47487e-02 1.09453e-02 768 2003 11 1.04489e-01 7.79835e-02 1088 2003 12 1.08824e-01 3.94704e-02 940 2004 1 7.56253e-02 2.63037e-02 1020 2004 2 6.51746e-02 1.27733e-02 732 2004 3 4.34061e-02 3.81940e-03 1088 2004 4 6.40608e-02 1.55557e-02 576 2004 5 4.15542e-02 3.72301e-03 768 2004 6 3.71439e-02 4.46367e-03 602 2004 7 5.12666e-02 1.53624e-02 649 2004 8 5.71308e-02 1.73226e-02 480 2004 9 1.00943e-01 4.44590e-02 576 2004 10 1.08371e-01 4.59832e-02 941 2004 11 1.12869e-01 2.62598e-02 1085 2004 12 1.31540e-01 4.30322e-02 459 2005 1 8.59210e-02 1.95219e-02 962 2005 2 1.09707e-01 4.79096e-02 1021 2005 3 8.28931e-02 4.53609e-02 245 2005 4 4.60738e-02 5.03859e-03 892 2005 5 3.75553e-02 3.55240e-03 640 2005 6 5.00114e-02 5.12448e-03 367 2005 7 7.66162e-02 4.30844e-02 320 2005 8 5.78359e-02 5.16087e-03 451 2005 9 1.55288e-01 4.15886e-02 258 2005 10 1.97688e-01 8.91164e-02 685 2005 11 1.63831e-01 5.06421e-02 942 2005 12 1.37085e-01 3.47825e-02 960 2006 1 9.74207e-02 4.09657e-02 714 2006 2 8.05419e-02 2.53689e-02 960 2006 3 5.71940e-02 5.92425e-03 1205 2006 4 4.23941e-02 3.67230e-03 946 2006 5 4.08036e-02 5.26391e-03 997 2006 6 4.60092e-02 5.47230e-03 720 2006 7 3.97805e-02 4.14451e-03 473 2006 8 3.76109e-02 2.26499e-03 512 2006 9 4.94790e-02 8.77084e-03 534 2006 10 8.84930e-02 2.46852e-02 832 2006 11 1.02589e-01 2.97168e-02 625 2006 12 8.33539e-02 2.12348e-02 356 2007 1 6.75197e-02 8.54003e-03 640 2007 2 8.11307e-02 3.25749e-02 606 2007 3 4.47727e-02 7.28083e-03 792 2007 4 7.37791e-02 5.51901e-02 748 2007 5 4.84066e-02 8.29198e-03 640 2007 6 5.08007e-02 1.13570e-02 564 2007 7 4.39951e-02 3.97396e-03 494 2007 8 5.42029e-02 5.90340e-03 753 2007 9 5.71302e-02 7.07473e-03 782 2007 10 7.03285e-02 1.80857e-02 741 2007 11 9.55496e-02 2.42462e-02 1016 2007 12 8.48434e-02 5.68353e-02 1152 2008 1 9.64006e-02 8.90716e-02 721 2008 2 5.92930e-02 2.05203e-02 832 2008 3 7.19871e-02 4.27612e-02 607 2008 4 4.50495e-02 6.39021e-03 832 2008 5 4.27224e-02 6.36180e-03 616 2008 6 3.71020e-02 2.99812e-03 704 2008 7 4.50041e-02 4.38838e-03 387 2008 8 5.19962e-02 5.28349e-03 265 2008 9 1.08347e-01 5.08742e-02 435 2008 10 7.91957e-02 1.71820e-02 978 2008 11 8.04889e-02 1.49165e-02 1040 2008 12 9.72501e-02 5.59001e-02 1205 2009 1 7.38981e-02 2.52855e-02 793 2009 2 5.98226e-02 2.51949e-02 989 2009 3 6.25868e-02 2.11155e-02 896 2009 4 4.51318e-02 1.25530e-02 768 2009 5 3.68051e-02 3.90702e-03 589 2009 6 3.97557e-02 2.92529e-03 384 2009 7 3.92308e-02 7.06759e-03 507 2009 8 4.05983e-02 3.08010e-03 353 2009 9 5.16667e-02 2.14358e-02 483 2009 10 6.31439e-02 1.34675e-02 842 2009 11 7.60448e-02 1.47451e-02 388 2009 12 9.94937e-02 1.41281e-02 448 2010 1 8.05211e-02 2.36212e-02 474 2010 2 9.69549e-02 2.94376e-02 386 2010 3 8.12981e-02 3.22308e-02 938 2010 4 6.20766e-02 9.19905e-03 640 2010 5 3.81984e-02 3.32562e-03 896 2010 6 4.09864e-02 2.99806e-03 896 2010 7 3.82720e-02 3.66955e-03 478 2010 8 4.63516e-02 5.50277e-03 703 2010 9 4.68689e-02 7.52663e-03 662 2010 10 6.62198e-02 7.86821e-03 1048 2010 11 6.90247e-02 1.00532e-02 1111 2010 12 1.37956e-01 4.24888e-02 657 2011 1 8.26899e-02 1.91632e-02 376 2011 2 6.37152e-02 9.37937e-03 1024 2011 3 5.60710e-02 3.85008e-03 1057 2011 4 4.85129e-02 6.47641e-03 896 2011 5 4.77992e-02 6.87883e-03 793 2011 6 3.93431e-02 5.01791e-03 576 2011 7 4.14912e-02 5.41960e-03 682 2011 8 4.14881e-02 4.10556e-03 615 2011 9 7.38263e-02 6.33398e-03 320 2011 10 8.40439e-02 3.18387e-02 565 2011 11 7.55966e-02 2.25663e-02 1220 2011 12 7.23527e-02 1.15324e-02 1162 2012 1 8.42196e-02 2.06978e-02 1152 2012 2 5.63512e-02 1.19019e-02 512 2012 3 6.00083e-02 1.83267e-02 1031 2012 4 4.34597e-02 4.74392e-03 704 2012 5 4.15913e-02 2.97368e-03 576 2012 6 4.92533e-02 1.39149e-02 304 2012 7 4.00117e-02 2.15926e-03 103 2012 8 4.02839e-02 3.04192e-03 384 2012 9 5.08265e-02 4.03312e-03 642 2012 10 6.35899e-02 2.01791e-02 772 2012 11 6.25797e-02 4.97101e-03 906 2012 12 8.78144e-02 4.01016e-02 708 2013 1 6.65345e-02 1.08985e-02 965 2013 2 7.04867e-02 2.23880e-02 798 2013 3 6.10021e-02 1.81226e-02 769 2013 4 4.22188e-02 5.37383e-03 489 2013 5 5.45158e-02 9.10225e-03 770 2013 6 4.09765e-02 4.55783e-03 578 2013 7 4.18402e-02 3.99570e-03 388 2013 8 5.63785e-02 1.16850e-02 529 2013 9 6.59249e-02 9.03630e-03 469 2013 10 9.84988e-02 4.08027e-02 658 2013 11 9.60859e-02 3.29238e-02 661 2013 12 8.68253e-02 1.18511e-02 578 2014 1 9.60578e-02 2.86277e-02 592 2014 2 6.28389e-02 1.51999e-02 832 2014 3 5.65554e-02 1.01741e-02 699 2014 4 5.16766e-02 1.17970e-02 512 2014 5 4.40801e-02 4.52272e-03 834 2014 6 3.98503e-02 4.47118e-03 576 2014 7 5.12366e-02 3.11227e-02 295 2014 8 5.08572e-02 1.06521e-02 521 2014 9 6.48102e-02 3.23502e-03 256 2014 10 6.29546e-02 9.29769e-03 1017 2014 11 8.97896e-02 1.59201e-02 809 2014 12 7.91471e-02 9.48145e-03 832 2015 1 1.16166e-01 5.27830e-02 641 2015 2 9.19052e-02 1.63377e-02 732 2015 3 5.78539e-02 8.14556e-03 1194 2015 4 5.00306e-02 5.55748e-03 556 2015 5 7.85594e-02 1.98852e-02 945 2015 6 4.72247e-02 8.03963e-03 454 2015 7 4.66348e-02 4.17999e-03 247 2015 8 5.72645e-02 5.22878e-03 310 2015 9 6.15367e-02 8.65370e-03 300 2015 10 7.34441e-02 4.04427e-03 630 2015 11 6.77323e-02 8.46032e-03 768 2015 12 6.13328e-02 1.71113e-02 360 2016 1 1.21728e-01 4.92256e-02 256 2016 2 1.05724e-01 7.53072e-02 962 2016 3 5.40756e-02 1.60378e-02 455 2016 4 5.05971e-02 3.58803e-03 821 2016 5 7.12860e-02 1.96083e-02 772 2016 6 4.19094e-02 7.11819e-03 768 2016 7 3.73202e-02 3.72806e-03 436 2016 8 4.83448e-02 8.23261e-03 754 2016 9 5.13667e-02 5.35354e-03 709 2016 10 8.24991e-02 4.45504e-02 995 2016 11 6.30507e-02 1.31649e-02 1216 2016 12 6.43196e-02 4.42951e-03 948 2017 1 1.01251e-01 8.37448e-02 1158 2017 2 6.70091e-02 2.20981e-02 988 2017 3 4.73796e-02 5.00142e-03 1118 2017 4 4.53125e-02 5.22919e-03 706 2017 5 4.55109e-02 5.50666e-03 819 2017 6 4.66980e-02 1.21527e-02 151 2017 7 4.18519e-02 2.59351e-03 289 2017 8 4.59328e-02 2.39527e-03 640 2017 9 9.21317e-02 4.02061e-02 861 2017 10 1.23392e-01 5.60343e-02 795 2017 11 1.17157e-01 2.84793e-02 1137 2017 12 8.50219e-02 1.94351e-02 795 2018 1 8.63236e-02 1.66640e-02 558 2018 2 5.34961e-02 4.96476e-03 832 2018 3 5.39049e-02 1.00252e-02 1216 2018 4 5.09940e-02 8.26318e-03 832 2018 5 4.13572e-02 5.96228e-03 374 2018 6 4.23769e-02 4.22296e-03 329 2018 7 5.39162e-02 1.27057e-02 597 2018 8 4.70373e-02 4.03673e-03 648 2018 9 7.03582e-02 1.74359e-02 493 2018 10 7.00752e-02 2.64380e-02 960 2018 11 1.34215e-01 8.15112e-02 714 2018 12 1.86542e-01 1.26213e-01 640 2019 1 1.07826e-01 4.35471e-02 760 2019 2 5.37004e-02 4.91851e-03 960 2019 3 5.84941e-02 6.84515e-03 761 2019 4 5.02588e-02 1.15592e-02 667 2019 5 4.45750e-02 3.53383e-03 719 2019 6 4.24899e-02 7.43950e-03 572 2019 7 4.48853e-02 3.64137e-03 448 2019 8 4.28279e-02 5.55033e-03 401 2019 9 9.70060e-02 3.25689e-02 832 2019 10 1.06008e-01 2.23362e-02 1033 2019 11 1.26780e-01 3.14865e-02 736 2019 12 8.41008e-02 1.31046e-02 609 2020 1 7.22132e-02 2.47165e-02 936 2020 2 6.36746e-02 1.64048e-02 745 2020 3 4.46211e-02 5.39436e-03 1187 2020 4 3.58705e-02 1.09851e-02 386 2020 5 4.45777e-02 6.65541e-03 520 2020 6 4.40598e-02 3.43135e-03 512 2020 7 4.85695e-02 6.21039e-03 256 2020 8 5.74552e-02 4.10709e-03 384 2020 9 5.11468e-02 5.35401e-03 263 2020 10 6.55781e-02 6.78660e-03 456 2020 11 1.11867e-01 3.13868e-02 702 2020 12 1.13043e-01 2.51985e-02 741 2021 1 8.45838e-02 1.54585e-02 792 2021 2 9.03552e-02 1.10931e-01 674 2021 3 4.80708e-02 5.67720e-03 969 2021 4 4.73010e-02 6.99184e-03 768 2021 5 3.98113e-02 3.10831e-03 905 2021 6 3.81531e-02 4.75601e-03 192 2021 7 6.58602e-02 3.34331e-02 625 2021 8 6.65242e-02 1.04420e-02 554 2021 9 8.48505e-02 1.45863e-02 515 2021 10 8.85494e-02 1.88636e-02 613 2021 11 1.03605e-01 3.07790e-02 801 2021 12 6.10960e-02 1.26163e-02 921 2022 1 1.06197e-01 8.68876e-02 546 2022 2 7.46616e-02 1.86475e-02 961 2022 3 6.76933e-02 2.94459e-02 1031 2022 4 4.37423e-02 6.37852e-03 364 2022 5 3.82671e-02 4.78360e-03 686 2022 6 3.68958e-02 4.59295e-03 699 2022 7 3.35966e-02 4.12711e-03 358 2022 8 6.65678e-02 1.56100e-02 559 2022 9 6.50736e-02 3.60585e-02 318 2022 10 1.62718e-01 6.48469e-02 891 2022 11 9.75127e-02 2.56509e-02 777 2022 12 8.09538e-02 1.64412e-02 814 2023 1 6.81709e-02 2.22072e-02 914 2023 2 9.31619e-02 8.71492e-02 1209 2023 3 4.35090e-02 6.73139e-03 974 2023 4 4.06620e-02 6.57121e-03 384 2023 5 5.71508e-02 2.22675e-02 728 2023 6 3.96072e-02 4.65150e-03 447 2023 7 5.79801e-02 2.18887e-02 512 2023 8 6.07985e-02 1.18364e-02 413 2023 9 7.72751e-02 3.93024e-02 881 2023 10 6.52506e-02 1.14371e-02 700 2023 11 6.16583e-02 9.91672e-03 813 2023 12 1.26523e-01 9.51022e-02 432 2024 1 7.36721e-02 1.60815e-02 172 2024 2 6.81863e-02 2.25545e-02 775 2024 3 4.61657e-02 9.44299e-03 572 2024 4 nan nan 0