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 6.17387e+01 4.97834e-01 176 2002 8 5.85621e+01 5.18499e-01 101 2002 9 5.25692e+01 1.93848e+00 320 2002 10 4.54271e+01 2.26751e+00 1127 2002 11 3.80562e+01 1.81198e+00 818 2002 12 3.36245e+01 5.54417e-01 783 2003 1 3.55879e+01 1.53560e+00 690 2003 2 4.36152e+01 2.47528e+00 701 2003 3 5.07568e+01 2.30823e+00 671 2003 4 5.70154e+01 8.91253e-01 95 2003 5 6.10305e+01 5.28767e-01 567 2003 6 6.25524e+01 1.88450e-01 24 2003 7 6.14548e+01 2.12339e-02 67 2003 8 5.90713e+01 9.10082e-01 143 2003 9 5.42342e+01 5.84957e-01 104 2003 10 4.54856e+01 2.47136e+00 940 2003 11 3.77653e+01 1.70173e+00 896 2003 12 3.37518e+01 5.73267e-01 640 2004 1 3.51463e+01 1.18878e+00 633 2004 2 4.25969e+01 2.77203e+00 239 2004 3 5.07862e+01 2.40314e+00 256 2004 4 5.85197e+01 2.32338e-02 64 2004 5 6.11504e+01 2.48006e-01 93 2004 6 6.24327e+01 6.16339e-01 308 2004 7 6.17578e+01 5.48853e-01 279 2004 8 5.86932e+01 1.02688e+00 677 2004 9 5.16541e+01 2.37723e+00 314 2004 10 4.41697e+01 2.23360e+00 753 2004 11 3.78760e+01 1.66347e+00 944 2004 12 3.34920e+01 1.07777e+00 768 2005 1 3.51273e+01 1.07937e+00 691 2005 2 4.30558e+01 1.09585e+00 296 2005 3 5.16426e+01 1.90273e+00 296 2005 4 5.87250e+01 1.67806e+00 360 2005 5 6.12499e+01 5.66591e-01 350 2005 6 6.27817e+01 1.19481e-01 143 2005 7 6.19065e+01 6.46158e-01 386 2005 8 5.98377e+01 4.75888e-01 291 2005 9 5.25967e+01 1.66520e+00 391 2005 10 4.55825e+01 2.51519e+00 576 2005 11 3.79846e+01 2.00408e+00 724 2005 12 3.36699e+01 4.74851e-01 796 2006 1 3.54098e+01 1.12891e+00 639 2006 2 4.36062e+01 1.91444e+00 462 2006 3 4.99113e+01 1.93343e+00 633 2006 4 5.60750e+01 8.90266e-01 84 2006 5 6.06931e+01 9.79770e-01 154 2006 6 6.26461e+01 3.56087e-01 193 2006 7 6.19915e+01 3.31405e-01 200 2006 8 5.85808e+01 8.47987e-01 210 2006 9 5.30523e+01 1.30498e+00 215 2006 10 4.46487e+01 2.15043e+00 959 2006 11 3.73949e+01 1.91799e+00 764 2006 12 3.37338e+01 2.71195e-01 512 2007 1 3.56974e+01 1.32230e+00 826 2007 2 4.30365e+01 1.67171e+00 239 2007 3 4.87852e+01 1.25824e+00 63 2007 4 5.52982e+01 1.15910e-01 9 2007 5 6.04853e+01 6.38428e-01 204 2007 6 6.23817e+01 1.00652e+00 384 2007 7 6.18963e+01 5.62517e-01 232 2007 8 5.97378e+01 1.15781e+00 480 2007 9 5.33110e+01 2.18236e+00 318 2007 10 4.46579e+01 1.86723e+00 625 2007 11 3.83426e+01 1.85349e+00 1131 2007 12 3.38030e+01 5.30008e-01 1140 2008 1 3.49554e+01 1.27860e+00 77 2008 2 nan nan 0 2008 3 nan nan 0 2008 4 5.91821e+01 1.10081e+00 200 2008 5 6.07636e+01 4.12948e-01 293 2008 6 nan nan 0 2008 7 6.14372e+01 5.63281e-01 100 2008 8 5.85230e+01 1.05965e+00 424 2008 9 5.25451e+01 1.81385e+00 437 2008 10 4.57701e+01 2.05529e+00 425 2008 11 3.71887e+01 1.77582e+00 1217 2008 12 3.37114e+01 5.86629e-01 1132 2009 1 3.47710e+01 6.96151e-01 440 2009 2 3.96441e+01 9.90049e-01 287 2009 3 5.02377e+01 2.24790e+00 21 2009 4 5.73685e+01 1.29368e+00 287 2009 5 6.11289e+01 1.17994e+00 29 2009 6 6.27345e+01 2.60948e-01 183 2009 7 6.19139e+01 3.66360e-01 318 2009 8 5.95436e+01 1.40923e+00 361 2009 9 5.29404e+01 2.09516e+00 718 2009 10 4.54078e+01 3.06850e+00 749 2009 11 3.74701e+01 1.87161e+00 935 2009 12 3.35593e+01 3.35658e-01 558 2010 1 3.48946e+01 7.80177e-01 14 2010 2 4.50738e+01 1.13378e-02 64 2010 3 5.04205e+01 9.51758e-02 64 2010 4 nan nan 0 2010 5 5.99040e+01 7.03625e-01 170 2010 6 6.22311e+01 6.96951e-01 149 2010 7 6.12977e+01 5.40983e-01 174 2010 8 6.02590e+01 4.48987e-01 256 2010 9 5.66164e+01 8.36620e-03 34 2010 10 4.53684e+01 2.58877e+00 1030 2010 11 3.84410e+01 1.28790e+00 889 2010 12 3.30877e+01 9.64509e-01 457 2011 1 3.50426e+01 1.42221e+00 451 2011 2 3.85276e+01 2.23502e-02 14 2011 3 5.44745e+01 8.89076e-01 74 2011 4 5.68243e+01 1.46243e+00 364 2011 5 5.98351e+01 1.24851e+00 19 2011 6 6.27320e+01 2.31739e-01 265 2011 7 6.13500e+01 7.48317e-01 265 2011 8 5.94305e+01 9.48962e-01 387 2011 9 5.31896e+01 2.81385e+00 73 2011 10 4.40898e+01 2.45135e+00 315 2011 11 3.82907e+01 1.72408e+00 685 2011 12 3.38604e+01 3.76098e-01 1217 2012 1 3.58334e+01 1.29439e+00 769 2012 2 4.52667e+01 4.15760e-01 75 2012 3 5.42530e+01 8.99756e-02 64 2012 4 5.76950e+01 6.52068e-01 256 2012 5 6.11367e+01 2.57989e-01 105 2012 6 6.28549e+01 3.79412e-02 128 2012 7 6.15934e+01 6.79594e-01 130 2012 8 5.94717e+01 8.98767e-01 192 2012 9 5.38407e+01 2.58969e+00 517 2012 10 4.55194e+01 1.59044e+00 577 2012 11 3.80038e+01 1.86614e+00 799 2012 12 3.34371e+01 7.87691e-01 512 2013 1 3.58528e+01 1.65720e+00 1074 2013 2 4.23488e+01 2.66549e+00 558 2013 3 5.26098e+01 2.77880e+00 467 2013 4 5.80420e+01 1.06899e+00 467 2013 5 6.06742e+01 5.68228e-01 370 2013 6 nan nan 0 2013 7 nan nan 0 2013 8 nan nan 0 2013 9 5.40794e+01 6.00928e-03 64 2013 10 4.46471e+01 2.57850e+00 536 2013 11 3.69335e+01 1.75226e+00 392 2013 12 3.39016e+01 4.93699e-01 716 2014 1 3.51154e+01 1.73983e+00 303 2014 2 4.21368e+01 2.27925e+00 591 2014 3 5.14626e+01 4.13994e-02 60 2014 4 5.67258e+01 3.10446e-01 66 2014 5 6.14925e+01 4.03348e-01 98 2014 6 6.27431e+01 6.34243e-02 437 2014 7 6.19455e+01 3.98729e-01 271 2014 8 5.86267e+01 1.19834e+00 288 2014 9 5.28600e+01 2.35716e+00 235 2014 10 4.56798e+01 2.70817e+00 684 2014 11 3.68246e+01 1.94096e+00 589 2014 12 3.38311e+01 3.41361e-01 626 2015 1 3.57031e+01 1.78811e+00 507 2015 2 4.35850e+01 1.90398e+00 189 2015 3 4.99905e+01 2.94291e+00 292 2015 4 5.85383e+01 1.71644e+00 97 2015 5 6.09556e+01 6.81286e-01 212 2015 6 6.27624e+01 7.73019e-02 239 2015 7 6.20910e+01 2.65719e-01 157 2015 8 5.85826e+01 1.00363e+00 398 2015 9 5.41874e+01 2.44685e+00 400 2015 10 4.47454e+01 1.96705e+00 282 2015 11 3.85578e+01 1.75929e+00 803 2015 12 3.36223e+01 3.74253e-01 747 2016 1 3.47464e+01 9.03095e-01 380 2016 2 4.26306e+01 2.66380e+00 819 2016 3 5.23313e+01 2.18538e+00 323 2016 4 5.83481e+01 1.55068e+00 682 2016 5 6.11497e+01 4.14360e-01 525 2016 6 6.24689e+01 3.56396e-01 384 2016 7 6.16843e+01 6.33929e-01 259 2016 8 5.91292e+01 8.78217e-01 342 2016 9 5.29159e+01 1.93284e+00 582 2016 10 4.54642e+01 1.96763e+00 702 2016 11 3.78867e+01 1.92659e+00 1113 2016 12 3.35505e+01 2.16362e-01 844 2017 1 3.64824e+01 1.16656e+00 195 2017 2 4.19037e+01 2.35057e+00 91 2017 3 5.14445e+01 1.60961e+00 49 2017 4 5.77349e+01 2.10336e+00 108 2017 5 6.17927e+01 1.56433e-01 320 2017 6 6.25769e+01 4.02802e-02 64 2017 7 6.24414e+01 2.24061e-01 130 2017 8 5.81982e+01 1.48949e+00 257 2017 9 5.26161e+01 1.80423e+00 697 2017 10 4.51903e+01 2.01544e+00 479 2017 11 3.79980e+01 1.92057e+00 1216 2017 12 3.36562e+01 5.40245e-01 1216 2018 1 3.54488e+01 1.93914e+00 604 2018 2 4.29615e+01 2.08581e+00 805 2018 3 5.00777e+01 1.70677e+00 190 2018 4 5.87626e+01 1.26568e+00 237 2018 5 6.03407e+01 1.56814e-01 180 2018 6 6.27296e+01 2.26890e-02 11 2018 7 6.17617e+01 7.56652e-01 104 2018 8 5.85244e+01 3.72504e-03 55 2018 9 5.31601e+01 1.61249e+00 417 2018 10 4.46197e+01 2.28508e+00 921 2018 11 3.80412e+01 1.65066e+00 927 2018 12 3.36703e+01 7.10277e-01 842 2019 1 3.52708e+01 1.33928e+00 960 2019 2 4.34933e+01 2.55200e+00 1125 2019 3 5.06884e+01 2.37413e+00 739 2019 4 5.90001e+01 1.00355e+00 354 2019 5 6.16476e+01 5.22965e-01 16 2019 6 6.27742e+01 1.15738e-01 152 2019 7 6.19526e+01 1.66848e-01 125 2019 8 6.03554e+01 1.18425e-02 14 2019 9 5.14951e+01 1.20863e+00 398 2019 10 4.44928e+01 2.32119e+00 598 2019 11 3.77775e+01 2.10477e+00 936 2019 12 3.38922e+01 3.98150e-01 832 2020 1 3.50379e+01 1.40524e+00 834 2020 2 4.01039e+01 2.58675e+00 86 2020 3 5.38055e+01 2.15499e-02 25 2020 4 5.72216e+01 5.83167e-01 131 2020 5 6.10292e+01 5.31101e-01 306 2020 6 6.27478e+01 9.10095e-02 338 2020 7 6.15735e+01 6.38632e-01 241 2020 8 5.96768e+01 6.50043e-01 412 2020 9 5.20191e+01 1.56738e+00 302 2020 10 4.37283e+01 2.00076e+00 326 2020 11 3.70642e+01 1.34226e+00 669 2020 12 3.36659e+01 2.33967e-01 1150 2021 1 3.66013e+01 1.69483e+00 685 2021 2 4.41387e+01 1.95713e+00 908 2021 3 5.01263e+01 1.78699e+00 424 2021 4 5.87862e+01 6.17517e-01 66 2021 5 6.15859e+01 3.91784e-01 134 2021 6 6.27253e+01 1.29150e-02 123 2021 7 6.19336e+01 6.03309e-01 422 2021 8 5.90678e+01 2.75937e-01 257 2021 9 5.20098e+01 2.12951e+00 499 2021 10 4.58982e+01 1.85605e+00 678 2021 11 3.70709e+01 1.83808e+00 837 2021 12 3.38134e+01 4.36816e-01 1088 2022 1 3.56149e+01 1.45039e+00 707 2022 2 4.38918e+01 2.55293e+00 896 2022 3 5.11711e+01 2.31514e+00 765 2022 4 5.93604e+01 3.32367e-01 147 2022 5 6.09975e+01 4.20182e-01 325 2022 6 6.25847e+01 3.85983e-01 292 2022 7 6.20004e+01 4.74409e-01 302 2022 8 5.93282e+01 8.84833e-01 426 2022 9 5.39614e+01 2.05238e+00 344 2022 10 4.49029e+01 2.67348e+00 1093 2022 11 3.75369e+01 2.00478e+00 851 2022 12 3.40249e+01 4.22735e-01 954 2023 1 3.56921e+01 1.79223e+00 831 2023 2 4.34570e+01 2.32461e+00 1088 2023 3 5.05551e+01 1.77700e+00 668 2023 4 5.85138e+01 1.19368e+00 192 2023 5 6.09312e+01 4.60916e-01 125 2023 6 6.28534e+01 2.69703e-02 89 2023 7 6.20691e+01 7.26199e-01 250 2023 8 5.99250e+01 4.67564e-01 61 2023 9 5.41213e+01 1.99037e+00 77 2023 10 4.51967e+01 2.35308e+00 591 2023 11 3.78904e+01 1.53691e+00 477 2023 12 3.31579e+01 7.42690e-01 204 2024 1 nan nan 0 2024 2 4.30655e+01 2.01039e+00 468 2024 3 5.18145e+01 2.29572e+00 279 2024 4 nan nan 0