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 6.27769e+01 9.31721e-01 190 2002 8 5.47064e+01 3.16073e+00 413 2002 9 4.49029e+01 3.94717e+00 705 2002 10 3.48257e+01 2.12044e+00 273 2002 11 2.25128e+01 2.55551e-01 61 2002 12 nan nan 0 2003 1 nan nan 0 2003 2 nan nan 0 2003 3 nan nan 0 2003 4 5.33634e+01 2.17611e+00 25 2003 5 5.88498e+01 1.49002e+00 35 2003 6 6.44817e+01 4.84679e-01 289 2003 7 6.21292e+01 1.39067e+00 465 2003 8 5.51119e+01 2.19604e+00 305 2003 9 4.70418e+01 2.19009e+00 138 2003 10 3.32265e+01 3.13245e+00 616 2003 11 2.31961e+01 1.39585e+00 184 2003 12 1.71110e+01 2.95840e-01 197 2004 1 nan nan 0 2004 2 nan nan 0 2004 3 3.91532e+01 1.75359e+00 245 2004 4 4.92426e+01 1.64715e+00 177 2004 5 6.06028e+01 1.61800e+00 113 2004 6 6.42543e+01 8.45371e-01 218 2004 7 6.21216e+01 1.79403e+00 301 2004 8 5.31030e+01 2.55153e+00 307 2004 9 4.40372e+01 3.60358e+00 608 2004 10 3.54472e+01 2.79936e+00 506 2004 11 2.34641e+01 1.07929e+00 124 2004 12 1.72472e+01 6.13225e-02 64 2005 1 1.92520e+01 0.00000e+00 1 2005 2 nan nan 0 2005 3 4.29392e+01 3.71122e+00 145 2005 4 4.95319e+01 1.12201e+00 207 2005 5 6.05385e+01 2.27894e+00 292 2005 6 6.41660e+01 3.72518e-01 267 2005 7 6.22451e+01 1.79522e+00 529 2005 8 5.60461e+01 2.88053e+00 518 2005 9 4.59374e+01 3.48075e+00 821 2005 10 3.29195e+01 3.30090e+00 448 2005 11 2.41792e+01 1.38376e+00 241 2005 12 1.73180e+01 4.78000e-01 2 2006 1 1.93306e+01 1.00365e+00 184 2006 2 3.05655e+01 7.30691e-01 68 2006 3 3.85196e+01 2.25618e+00 252 2006 4 5.37932e+01 2.83001e+00 249 2006 5 6.00207e+01 1.50515e+00 271 2006 6 6.45983e+01 2.83594e-01 391 2006 7 6.30203e+01 9.62891e-01 365 2006 8 5.70169e+01 1.62713e+00 509 2006 9 4.16640e+01 1.27291e+00 126 2006 10 3.55166e+01 4.55629e-01 183 2006 11 1.98418e+01 6.44045e-01 150 2006 12 1.70301e+01 3.83118e-02 64 2007 1 1.76457e+01 1.98029e-03 7 2007 2 nan nan 0 2007 3 4.24236e+01 8.37778e-01 69 2007 4 5.29089e+01 1.90965e+00 265 2007 5 6.06722e+01 1.67694e+00 305 2007 6 6.43609e+01 2.91777e-01 489 2007 7 6.19851e+01 1.64430e+00 513 2007 8 5.40968e+01 3.22814e+00 321 2007 9 4.51475e+01 3.47848e+00 652 2007 10 3.37333e+01 4.04276e+00 255 2007 11 2.37029e+01 2.37666e+00 271 2007 12 1.77202e+01 3.23898e-01 117 2008 1 1.97580e+01 0.00000e+00 1 2008 2 nan nan 0 2008 3 4.30821e+01 6.87495e-01 27 2008 4 5.17540e+01 2.81131e+00 175 2008 5 6.19106e+01 8.58611e-01 136 2008 6 6.45100e+01 3.61452e-01 113 2008 7 6.27874e+01 1.40524e+00 439 2008 8 5.53789e+01 2.89126e+00 503 2008 9 4.42791e+01 3.33555e+00 443 2008 10 3.33297e+01 3.16198e+00 660 2008 11 2.45482e+01 3.54485e-01 128 2008 12 1.74500e+01 0.00000e+00 2 2009 1 nan nan 0 2009 2 nan nan 0 2009 3 3.97354e+01 1.83829e+00 80 2009 4 5.02529e+01 6.62604e-01 83 2009 5 6.16216e+01 1.52993e+00 286 2009 6 6.44115e+01 2.69116e-01 349 2009 7 6.30413e+01 7.16992e-01 300 2009 8 5.74690e+01 1.60363e+00 117 2009 9 4.72954e+01 2.55130e+00 387 2009 10 2.86398e+01 2.61960e+00 158 2009 11 2.35199e+01 8.93531e-01 370 2009 12 1.83767e+01 3.64346e-01 94 2010 1 nan nan 0 2010 2 nan nan 0 2010 3 4.35274e+01 3.65447e+00 171 2010 4 5.12664e+01 2.94856e+00 104 2010 5 6.10904e+01 2.25471e+00 368 2010 6 6.41511e+01 4.05375e-01 148 2010 7 6.33767e+01 9.07571e-01 478 2010 8 5.37170e+01 2.56334e+00 485 2010 9 4.35399e+01 5.12789e+00 148 2010 10 3.46550e+01 2.85341e+00 396 2010 11 2.33460e+01 2.19097e+00 460 2010 12 nan nan 0 2011 1 nan nan 0 2011 2 nan nan 0 2011 3 4.42881e+01 2.05050e+00 174 2011 4 5.10145e+01 7.89263e-01 84 2011 5 5.96482e+01 1.77209e+00 156 2011 6 6.43077e+01 1.99504e-01 202 2011 7 6.34091e+01 9.07359e-01 381 2011 8 5.53312e+01 1.85457e+00 179 2011 9 4.62000e+01 2.34872e+00 133 2011 10 3.48534e+01 2.82731e+00 396 2011 11 2.56523e+01 5.22197e-01 195 2011 12 1.72978e+01 2.19027e-01 197 2012 1 1.81745e+01 4.25926e-01 59 2012 2 2.74965e+01 3.04861e+00 351 2012 3 4.15910e+01 2.68968e+00 381 2012 4 5.03527e+01 1.80947e+00 137 2012 5 6.12598e+01 1.10599e+00 479 2012 6 6.44646e+01 2.19557e-01 424 2012 7 6.20557e+01 1.56246e+00 457 2012 8 5.38038e+01 2.60962e+00 658 2012 9 4.41734e+01 3.44692e+00 413 2012 10 3.33982e+01 2.42948e+00 402 2012 11 2.19937e+01 2.39079e+00 291 2012 12 1.73241e+01 7.32945e-02 135 2013 1 1.90901e+01 7.27886e-01 116 2013 2 3.23151e+01 2.29348e-01 40 2013 3 3.90928e+01 3.11410e+00 215 2013 4 4.93328e+01 2.73307e+00 154 2013 5 5.96647e+01 1.37762e+00 294 2013 6 6.42869e+01 2.31423e-01 343 2013 7 6.21984e+01 8.74866e-01 135 2013 8 5.29385e+01 8.95264e-01 196 2013 9 4.22177e+01 3.27994e+00 443 2013 10 3.54090e+01 2.99179e+00 133 2013 11 2.37049e+01 1.10402e+00 116 2013 12 1.72348e+01 1.41586e-02 32 2014 1 nan nan 0 2014 2 nan nan 0 2014 3 4.67957e+01 1.30244e-02 14 2014 4 5.32307e+01 2.32273e+00 367 2014 5 6.27285e+01 1.16284e+00 307 2014 6 6.43697e+01 2.73584e-01 196 2014 7 6.30916e+01 8.81158e-01 210 2014 8 5.33758e+01 1.96876e+00 270 2014 9 4.44090e+01 3.22258e+00 664 2014 10 3.01459e+01 2.06963e+00 341 2014 11 2.55261e+01 5.51543e-01 121 2014 12 1.75834e+01 2.69190e-01 70 2015 1 nan nan 0 2015 2 nan nan 0 2015 3 4.58422e+01 2.55377e-02 32 2015 4 5.16446e+01 3.74344e+00 286 2015 5 5.93000e+01 1.86499e+00 265 2015 6 6.34665e+01 8.89121e-01 177 2015 7 6.14366e+01 9.70038e-01 285 2015 8 5.68182e+01 1.61833e+00 161 2015 9 4.21353e+01 2.62905e+00 460 2015 10 3.18416e+01 2.62030e+00 180 2015 11 2.44473e+01 1.88658e+00 331 2015 12 nan nan 0 2016 1 2.28685e+01 5.28308e-02 19 2016 2 2.80470e+01 4.55348e+00 189 2016 3 4.46051e+01 3.70208e+00 98 2016 4 5.26808e+01 1.98574e+00 365 2016 5 6.06026e+01 1.60882e+00 304 2016 6 6.46227e+01 1.73258e-01 442 2016 7 6.18945e+01 1.71535e+00 339 2016 8 5.58888e+01 3.30168e+00 424 2016 9 4.53838e+01 3.27898e+00 449 2016 10 3.40503e+01 2.37526e+00 515 2016 11 2.24855e+01 1.83835e+00 513 2016 12 1.70798e+01 6.54247e-02 8 2017 1 1.76073e+01 3.15737e-02 64 2017 2 3.08749e+01 1.41808e+00 246 2017 3 3.82516e+01 3.52176e+00 106 2017 4 5.32206e+01 2.25343e+00 150 2017 5 6.03689e+01 1.36777e+00 249 2017 6 6.40082e+01 5.40237e-01 386 2017 7 6.24228e+01 1.48793e+00 464 2017 8 5.61199e+01 1.19876e+00 110 2017 9 4.41417e+01 2.66243e+00 519 2017 10 3.19579e+01 2.19510e+00 342 2017 11 2.11192e+01 2.20439e+00 400 2017 12 1.80547e+01 5.68325e-01 79 2018 1 nan nan 0 2018 2 3.33713e+01 2.39279e-01 56 2018 3 3.88580e+01 2.69362e+00 294 2018 4 5.71299e+01 5.48360e-01 150 2018 5 6.12749e+01 2.35696e+00 304 2018 6 6.37986e+01 4.58258e-01 164 2018 7 6.34710e+01 6.92837e-01 307 2018 8 5.41961e+01 2.97902e+00 312 2018 9 4.40016e+01 3.45552e+00 500 2018 10 3.32776e+01 2.64912e+00 418 2018 11 2.08254e+01 4.72651e-02 64 2018 12 1.73720e+01 2.96860e-01 204 2019 1 1.80844e+01 4.23100e-01 165 2019 2 nan nan 0 2019 3 4.35423e+01 2.30764e+00 314 2019 4 4.98829e+01 3.25689e+00 262 2019 5 6.14736e+01 1.96754e+00 104 2019 6 6.43310e+01 3.53740e-01 206 2019 7 6.29806e+01 3.75444e-01 142 2019 8 5.49474e+01 2.93165e+00 283 2019 9 4.49433e+01 2.77618e+00 281 2019 10 3.31009e+01 2.68100e+00 434 2019 11 2.12464e+01 1.30548e+00 128 2019 12 1.70342e+01 6.83540e-02 147 2020 1 1.81479e+01 5.39708e-01 72 2020 2 2.91711e+01 2.41693e+00 548 2020 3 3.98530e+01 3.44394e+00 239 2020 4 5.06357e+01 2.81958e+00 222 2020 5 6.06373e+01 2.14490e+00 316 2020 6 6.44220e+01 1.43339e-01 194 2020 7 6.28844e+01 1.08689e+00 832 2020 8 5.73159e+01 1.07914e+00 296 2020 9 4.51082e+01 3.45757e+00 362 2020 10 3.18782e+01 3.72002e+00 273 2020 11 2.34662e+01 1.82441e+00 509 2020 12 1.84405e+01 3.56214e-02 69 2021 1 2.11857e+01 2.27072e-01 112 2021 2 3.32023e+01 6.39025e-01 108 2021 3 3.99363e+01 4.32416e+00 661 2021 4 5.20770e+01 3.27021e+00 188 2021 5 5.98090e+01 1.49424e+00 229 2021 6 6.45029e+01 2.61732e-01 138 2021 7 6.32496e+01 1.10608e+00 10 2021 8 5.49762e+01 2.77145e+00 481 2021 9 4.31849e+01 3.74660e+00 531 2021 10 3.34880e+01 2.89018e+00 263 2021 11 2.24775e+01 2.24025e+00 503 2021 12 1.71214e+01 8.71374e-01 72 2022 1 1.75257e+01 3.61283e-01 57 2022 2 3.34700e+01 1.01374e-01 5 2022 3 4.07362e+01 3.61314e+00 251 2022 4 5.28141e+01 4.87027e-01 71 2022 5 6.04749e+01 2.78455e+00 160 2022 6 6.44997e+01 3.56268e-01 428 2022 7 6.24463e+01 7.72583e-01 320 2022 8 5.40763e+01 2.04389e+00 464 2022 9 4.52480e+01 4.15873e+00 322 2022 10 3.29297e+01 3.91519e+00 497 2022 11 2.29166e+01 2.50049e+00 579 2022 12 1.78740e+01 2.63104e-01 6 2023 1 1.90642e+01 3.70993e-01 53 2023 2 2.84684e+01 9.53150e-01 69 2023 3 4.17693e+01 2.12647e+00 47 2023 4 4.99440e+01 2.16159e+00 432 2023 5 6.15976e+01 2.39389e+00 269 2023 6 6.37484e+01 6.53686e-01 221 2023 7 6.32576e+01 7.91470e-01 256 2023 8 5.40449e+01 3.04640e+00 414 2023 9 4.49208e+01 3.57183e+00 740 2023 10 3.56197e+01 3.07375e+00 432 2023 11 2.23027e+01 1.62169e+00 547 2023 12 1.71495e+01 1.64184e-01 115 2024 1 nan nan 0 2024 2 2.94242e+01 1.75876e+00 137 2024 3 3.74898e+01 2.02438e+00 227 2024 4 nan nan 0