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 5.89255e+01 8.01125e-02 52 2002 8 5.72687e+01 7.97687e-02 64 2002 9 5.61039e+01 6.31349e-01 192 2002 10 4.92243e+01 1.93696e+00 550 2002 11 4.39890e+01 1.49898e+00 676 2002 12 3.98592e+01 2.14990e-01 505 2003 1 4.24590e+01 1.05647e+00 625 2003 2 4.76196e+01 1.67030e+00 542 2003 3 5.43086e+01 1.42737e+00 377 2003 4 5.87278e+01 8.81983e-01 99 2003 5 5.89116e+01 2.33059e-01 146 2003 6 5.91723e+01 2.07597e-01 64 2003 7 nan nan 0 2003 8 5.82982e+01 9.39061e-02 123 2003 9 5.55175e+01 6.93627e-01 131 2003 10 4.98638e+01 1.73104e+00 294 2003 11 4.27326e+01 1.56230e+00 355 2003 12 3.98858e+01 4.10099e-01 416 2004 1 4.21018e+01 1.20125e+00 416 2004 2 4.73325e+01 1.91718e+00 512 2004 3 5.52559e+01 1.81571e+00 636 2004 4 5.89428e+01 8.10104e-01 463 2004 5 5.97358e+01 3.52296e-01 111 2004 6 5.94516e+01 8.01576e-02 64 2004 7 5.87484e+01 7.77253e-02 54 2004 8 5.84524e+01 4.48597e-01 37 2004 9 5.69408e+01 4.08129e-02 64 2004 10 5.02810e+01 1.19004e+00 383 2004 11 4.27363e+01 1.78880e+00 363 2004 12 4.00692e+01 3.80043e-01 784 2005 1 4.19459e+01 1.47282e+00 371 2005 2 4.84794e+01 1.90349e+00 368 2005 3 5.48727e+01 1.40586e+00 354 2005 4 5.98110e+01 8.27641e-02 97 2005 5 5.95760e+01 4.86637e-01 92 2005 6 nan nan 0 2005 7 5.88035e+01 7.90828e-02 63 2005 8 5.86592e+01 7.51088e-02 48 2005 9 5.34744e+01 3.72173e-02 31 2005 10 4.91371e+01 2.28613e+00 260 2005 11 4.41061e+01 1.40993e+00 364 2005 12 4.00171e+01 3.88992e-01 732 2006 1 4.24868e+01 1.04706e+00 275 2006 2 4.90896e+01 1.55438e+00 631 2006 3 5.41700e+01 1.22011e+00 344 2006 4 nan nan 0 2006 5 5.95320e+01 3.99971e-03 2 2006 6 5.95737e+01 6.72154e-02 56 2006 7 5.89431e+01 3.36994e-01 141 2006 8 5.69925e+01 7.71165e-02 62 2006 9 5.42835e+01 7.62365e-01 344 2006 10 5.14250e+01 1.34150e+00 203 2006 11 4.37766e+01 1.63044e+00 638 2006 12 3.98602e+01 2.95974e-01 398 2007 1 4.24204e+01 1.56834e+00 513 2007 2 4.79115e+01 1.67932e+00 738 2007 3 5.47423e+01 9.10043e-02 103 2007 4 5.83576e+01 4.94932e-01 123 2007 5 5.93600e+01 2.06792e-01 29 2007 6 5.93065e+01 2.55969e-01 119 2007 7 5.88700e+01 7.95948e-02 64 2007 8 5.81449e+01 4.55117e-01 203 2007 9 5.52260e+01 1.18468e+00 197 2007 10 4.89834e+01 6.28146e-01 284 2007 11 4.35923e+01 1.35561e+00 336 2007 12 3.99729e+01 4.12592e-01 434 2008 1 4.20683e+01 1.19674e+00 712 2008 2 4.79559e+01 1.41910e+00 533 2008 3 5.46891e+01 2.04146e+00 436 2008 4 5.88813e+01 3.51391e-01 141 2008 5 5.92956e+01 2.03007e-01 29 2008 6 nan nan 0 2008 7 5.86105e+01 1.48930e-01 115 2008 8 5.82179e+01 2.73760e-01 162 2008 9 5.52333e+01 1.73909e-01 128 2008 10 4.99221e+01 2.17257e+00 660 2008 11 4.31719e+01 1.28520e+00 454 2008 12 3.98730e+01 1.41389e-01 573 2009 1 4.19613e+01 1.40181e+00 551 2009 2 4.89781e+01 1.57506e+00 311 2009 3 5.52371e+01 1.96260e+00 289 2009 4 5.86791e+01 7.80679e-01 293 2009 5 5.93052e+01 2.58770e-01 128 2009 6 5.93278e+01 1.81300e-01 124 2009 7 5.88500e+01 2.86080e-01 342 2009 8 5.81589e+01 2.55227e-01 58 2009 9 5.61906e+01 2.07523e-01 97 2009 10 4.87656e+01 1.88940e+00 597 2009 11 4.30936e+01 1.52524e+00 520 2009 12 4.00730e+01 3.98282e-01 675 2010 1 4.21161e+01 1.59625e+00 611 2010 2 4.72113e+01 1.17064e+00 396 2010 3 5.52621e+01 1.35772e+00 296 2010 4 5.77913e+01 3.14865e-01 180 2010 5 5.96283e+01 5.39371e-01 80 2010 6 5.94843e+01 1.01479e-01 217 2010 7 5.84697e+01 7.12122e-02 40 2010 8 5.83171e+01 7.21546e-01 84 2010 9 5.59596e+01 6.68938e-01 165 2010 10 4.97083e+01 1.13659e+00 373 2010 11 4.22393e+01 7.01295e-01 197 2010 12 4.01339e+01 3.36637e-01 416 2011 1 4.28507e+01 9.35815e-01 553 2011 2 4.75630e+01 1.45391e+00 470 2011 3 5.38072e+01 1.61215e+00 531 2011 4 5.89969e+01 6.08294e-01 367 2011 5 5.91892e+01 2.99993e-01 87 2011 6 5.95586e+01 6.74552e-02 57 2011 7 nan nan 0 2011 8 5.83668e+01 1.25973e-01 111 2011 9 5.45341e+01 1.32918e+00 282 2011 10 4.93099e+01 2.11848e+00 455 2011 11 4.28956e+01 1.26761e+00 334 2011 12 4.01006e+01 3.36845e-01 325 2012 1 4.11831e+01 8.87652e-01 742 2012 2 4.82791e+01 1.76307e+00 669 2012 3 5.46609e+01 6.18877e-01 244 2012 4 5.90868e+01 5.75539e-01 82 2012 5 5.89777e+01 2.08799e-01 124 2012 6 5.95552e+01 8.14458e-02 64 2012 7 5.84756e+01 7.66106e-02 63 2012 8 5.82054e+01 7.65347e-02 64 2012 9 5.52944e+01 1.38529e+00 238 2012 10 4.92440e+01 2.66250e+00 138 2012 11 4.35888e+01 1.73113e+00 498 2012 12 4.00196e+01 2.19343e-01 394 2013 1 4.22455e+01 1.37639e+00 515 2013 2 4.79224e+01 2.04377e+00 595 2013 3 5.42356e+01 1.53046e+00 380 2013 4 5.86592e+01 6.55049e-01 340 2013 5 5.93361e+01 2.03400e-01 57 2013 6 nan nan 0 2013 7 5.86651e+01 1.65930e-01 120 2013 8 5.81953e+01 5.32230e-01 192 2013 9 5.43510e+01 2.94810e-01 8 2013 10 4.96040e+01 2.13975e+00 192 2013 11 4.36086e+01 1.15303e+00 425 2013 12 3.98421e+01 2.63119e-01 600 2014 1 4.20655e+01 1.27549e+00 589 2014 2 4.75645e+01 1.80748e+00 469 2014 3 5.41142e+01 1.79234e+00 588 2014 4 5.88403e+01 8.22761e-01 290 2014 5 5.88833e+01 2.02992e-01 64 2014 6 5.93616e+01 8.28009e-02 64 2014 7 5.89388e+01 7.83557e-02 117 2014 8 5.83334e+01 5.10767e-01 124 2014 9 5.53036e+01 1.20225e+00 290 2014 10 4.89911e+01 1.66636e+00 410 2014 11 4.31585e+01 1.34508e+00 568 2014 12 3.99928e+01 3.18663e-01 579 2015 1 4.19587e+01 1.62755e+00 607 2015 2 4.80544e+01 2.43309e+00 602 2015 3 5.41406e+01 1.58129e+00 483 2015 4 5.87333e+01 7.76695e-01 375 2015 5 5.95493e+01 4.68416e-01 119 2015 6 5.91911e+01 2.05510e-01 56 2015 7 5.86278e+01 1.38432e-01 8 2015 8 5.83352e+01 2.65268e-01 380 2015 9 5.45605e+01 1.47777e+00 251 2015 10 4.86506e+01 1.45638e+00 338 2015 11 4.44453e+01 1.39865e+00 378 2015 12 3.98762e+01 1.73795e-01 511 2016 1 4.13524e+01 1.19710e+00 453 2016 2 4.77954e+01 2.14960e+00 694 2016 3 5.47501e+01 1.62192e+00 285 2016 4 5.87510e+01 3.92525e-01 243 2016 5 5.90528e+01 1.88191e-01 52 2016 6 5.94899e+01 1.01079e-01 110 2016 7 5.86639e+01 2.06165e-01 113 2016 8 5.75590e+01 2.48282e-01 139 2016 9 5.53930e+01 1.00788e+00 297 2016 10 4.99900e+01 2.65937e-01 128 2016 11 4.09979e+01 3.58431e-02 64 2016 12 4.00028e+01 1.94347e-01 426 2017 1 4.23632e+01 1.43385e+00 467 2017 2 4.73935e+01 1.48838e+00 609 2017 3 5.37113e+01 1.48698e+00 242 2017 4 5.79074e+01 4.11957e-01 291 2017 5 5.90698e+01 2.60950e-01 176 2017 6 5.95499e+01 9.44625e-02 300 2017 7 5.87154e+01 4.93751e-01 238 2017 8 5.83740e+01 9.39156e-02 65 2017 9 5.52808e+01 1.30886e+00 249 2017 10 4.99481e+01 1.73616e+00 250 2017 11 4.39012e+01 1.90551e+00 461 2017 12 3.98891e+01 3.54668e-01 493 2018 1 4.33343e+01 8.32055e-01 281 2018 2 4.82730e+01 1.59884e+00 404 2018 3 5.45974e+01 2.05228e+00 255 2018 4 5.88825e+01 7.30931e-01 235 2018 5 5.97096e+01 4.51558e-01 125 2018 6 5.94456e+01 1.79371e-01 198 2018 7 5.86386e+01 1.64556e-01 56 2018 8 5.78695e+01 2.68417e-01 188 2018 9 5.53857e+01 1.09469e+00 245 2018 10 4.83557e+01 1.70145e+00 590 2018 11 4.29867e+01 1.51275e+00 795 2018 12 4.00986e+01 3.55163e-01 487 2019 1 4.24961e+01 1.50361e+00 718 2019 2 4.77238e+01 1.63011e+00 485 2019 3 5.40618e+01 1.31372e+00 539 2019 4 5.92448e+01 5.17359e-01 383 2019 5 5.91836e+01 2.18275e-01 36 2019 6 5.94774e+01 7.94970e-02 64 2019 7 5.88128e+01 6.64647e-03 5 2019 8 5.76928e+01 4.68177e-01 183 2019 9 5.37740e+01 3.67682e-02 64 2019 10 4.95224e+01 1.97717e+00 410 2019 11 4.34968e+01 1.74574e+00 817 2019 12 3.98787e+01 2.23702e-01 581 2020 1 4.24875e+01 1.60870e+00 476 2020 2 4.76142e+01 2.05351e+00 620 2020 3 5.39843e+01 2.23505e+00 356 2020 4 5.88665e+01 6.33764e-01 361 2020 5 5.90861e+01 2.21101e-01 103 2020 6 5.94515e+01 1.07222e-01 274 2020 7 5.88464e+01 2.62778e-01 221 2020 8 5.85132e+01 1.12351e-01 119 2020 9 5.42944e+01 6.43307e-01 128 2020 10 4.94143e+01 9.76795e-01 277 2020 11 4.30727e+01 2.01032e+00 518 2020 12 3.98683e+01 3.16583e-01 618 2021 1 4.22577e+01 1.23040e+00 831 2021 2 4.87564e+01 1.76918e+00 585 2021 3 5.48636e+01 1.51593e+00 295 2021 4 5.87876e+01 7.37972e-01 270 2021 5 5.92834e+01 4.02047e-01 199 2021 6 nan nan 0 2021 7 5.87906e+01 4.16421e-01 212 2021 8 5.86809e+01 7.78812e-02 61 2021 9 5.44613e+01 1.55914e+00 307 2021 10 4.94501e+01 1.81266e+00 326 2021 11 4.34224e+01 1.69827e+00 808 2021 12 3.99676e+01 3.92582e-01 441 2022 1 4.21016e+01 1.41800e+00 1034 2022 2 4.90174e+01 1.91151e+00 581 2022 3 5.39397e+01 1.67077e+00 413 2022 4 5.93988e+01 3.00719e-01 113 2022 5 5.92379e+01 5.32150e-01 193 2022 6 5.94432e+01 8.48905e-02 206 2022 7 5.85853e+01 8.11594e-02 128 2022 8 5.77491e+01 5.72497e-01 227 2022 9 5.53723e+01 1.42867e+00 202 2022 10 4.99700e+01 1.18484e+00 436 2022 11 4.30792e+01 1.67179e+00 695 2022 12 3.99453e+01 2.69385e-01 848 2023 1 4.21319e+01 1.54048e+00 858 2023 2 4.83074e+01 2.32789e+00 458 2023 3 5.43083e+01 2.01672e+00 599 2023 4 5.90399e+01 4.13133e-01 308 2023 5 5.98380e+01 4.65403e-01 67 2023 6 5.95138e+01 8.00990e-02 116 2023 7 nan nan 0 2023 8 5.76171e+01 6.36138e-01 158 2023 9 5.62857e+01 6.72982e-01 174 2023 10 5.06630e+01 8.67532e-01 199 2023 11 4.30059e+01 1.59055e+00 669 2023 12 4.03419e+01 4.04421e-01 544 2024 1 4.17972e+01 1.24577e+00 783 2024 2 4.80088e+01 2.11742e+00 338 2024 3 5.43978e+01 1.37970e+00 387 2024 4 nan nan 0