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 1.59643e+00 2.87865e-01 106 2002 8 1.79249e+00 1.90281e-01 96 2002 9 1.48180e+00 1.89882e-01 159 2002 10 1.27190e+00 1.39219e-01 375 2002 11 1.18310e+00 2.00195e-01 351 2002 12 9.41548e-01 3.33734e-01 353 2003 1 7.37024e-01 1.07781e-01 596 2003 2 9.64452e-01 1.84049e-01 467 2003 3 1.50276e+00 1.08278e-01 58 2003 4 1.16673e+00 9.40643e-02 249 2003 5 1.35222e+00 7.89756e-02 140 2003 6 1.56863e+00 5.92057e-02 68 2003 7 1.53027e+00 1.96550e-01 22 2003 8 9.08743e-01 3.26929e-01 140 2003 9 9.04684e-01 2.79641e-01 187 2003 10 8.02377e-01 1.92223e-01 239 2003 11 9.17732e-01 2.69701e-01 284 2003 12 9.88512e-01 1.43861e-01 543 2004 1 1.06505e+00 1.71899e-01 437 2004 2 1.14944e+00 1.25187e-01 217 2004 3 1.17151e+00 1.52316e-01 208 2004 4 1.13038e+00 1.36303e-01 274 2004 5 1.35901e+00 5.08042e-02 126 2004 6 1.45682e+00 2.82745e-01 193 2004 7 1.68570e+00 1.26663e-01 131 2004 8 1.12398e+00 1.59067e-01 86 2004 9 nan nan 0 2004 10 6.58592e-01 2.09652e-01 343 2004 11 8.00819e-01 1.43460e-01 449 2004 12 9.02857e-01 1.57350e-01 338 2005 1 1.07979e+00 1.88361e-01 540 2005 2 1.31531e+00 1.91757e-01 453 2005 3 1.31899e+00 2.29923e-01 315 2005 4 1.23275e+00 1.35535e-01 495 2005 5 1.61381e+00 9.60419e-02 58 2005 6 2.00769e+00 2.12973e-01 92 2005 7 1.58761e+00 4.51368e-01 112 2005 8 1.61245e+00 5.65819e-01 86 2005 9 1.23078e+00 1.64088e-01 191 2005 10 1.14832e+00 7.51624e-02 428 2005 11 1.18425e+00 1.62203e-01 523 2005 12 1.32020e+00 3.10033e-01 545 2006 1 1.38497e+00 2.64619e-01 526 2006 2 1.44688e+00 2.65066e-01 518 2006 3 1.59240e+00 1.90031e-01 806 2006 4 1.69623e+00 3.05074e-01 226 2006 5 1.69472e+00 1.36899e-01 281 2006 6 1.86282e+00 4.23231e-01 199 2006 7 1.51363e+00 2.04716e-01 64 2006 8 1.53957e+00 7.55989e-01 223 2006 9 9.32020e-01 3.13396e-01 176 2006 10 1.00725e+00 1.76824e-01 546 2006 11 1.22984e+00 1.30338e-01 550 2006 12 1.50622e+00 2.41818e-01 291 2007 1 1.34621e+00 2.56563e-01 227 2007 2 1.51239e+00 2.48946e-01 320 2007 3 1.55905e+00 2.12647e-01 465 2007 4 1.44958e+00 1.72868e-01 222 2007 5 1.50533e+00 1.23824e-01 130 2007 6 1.64174e+00 6.64513e-02 89 2007 7 1.19317e+00 4.00231e-02 64 2007 8 1.10526e+00 3.83293e-01 149 2007 9 1.41719e+00 2.77700e-01 187 2007 10 1.53126e+00 2.58222e-01 201 2007 11 1.42983e+00 2.80932e-01 610 2007 12 1.50958e+00 2.38274e-01 620 2008 1 1.28806e+00 3.12486e-01 375 2008 2 1.53042e+00 2.19331e-01 379 2008 3 1.55082e+00 2.70469e-01 417 2008 4 1.30635e+00 2.54158e-01 365 2008 5 1.42785e+00 1.42546e-01 197 2008 6 1.83149e+00 2.59460e-01 63 2008 7 1.67295e+00 2.06737e-01 39 2008 8 1.14510e+00 1.55893e-01 116 2008 9 1.71276e+00 4.17289e-01 185 2008 10 1.28126e+00 3.67220e-01 430 2008 11 1.44468e+00 2.37538e-01 850 2008 12 1.50430e+00 2.03482e-01 492 2009 1 1.56442e+00 2.37974e-01 566 2009 2 1.57020e+00 2.49006e-01 526 2009 3 1.76503e+00 2.88308e-01 453 2009 4 1.56492e+00 2.71049e-01 199 2009 5 1.68965e+00 2.66350e-01 299 2009 6 1.52114e+00 9.27536e-02 44 2009 7 4.21293e-01 6.98527e-02 22 2009 8 1.16496e+00 2.62168e-02 56 2009 9 1.55811e+00 7.07541e-01 274 2009 10 1.07133e+00 1.50561e-01 463 2009 11 1.11841e+00 2.97793e-01 344 2009 12 1.13748e+00 1.87048e-01 184 2010 1 1.37778e+00 1.80311e-01 441 2010 2 1.32793e+00 2.00802e-01 463 2010 3 1.51186e+00 2.00607e-01 519 2010 4 1.27807e+00 1.97293e-01 327 2010 5 1.27303e+00 7.55515e-02 85 2010 6 1.45247e+00 2.50547e-01 141 2010 7 1.21449e+00 4.19251e-01 54 2010 8 1.11126e+00 3.81036e-02 51 2010 9 1.01151e+00 9.65952e-02 253 2010 10 1.06902e+00 1.36452e-01 722 2010 11 1.14583e+00 2.26079e-01 646 2010 12 1.14972e+00 2.33034e-01 744 2011 1 1.29814e+00 1.77278e-01 461 2011 2 1.71548e+00 2.66092e-01 441 2011 3 1.58059e+00 2.74584e-01 590 2011 4 1.34142e+00 3.03599e-01 445 2011 5 1.38196e+00 1.24971e-01 217 2011 6 1.14278e+00 1.51871e-01 80 2011 7 1.39632e+00 2.37654e-01 171 2011 8 7.18351e-01 3.49037e-01 60 2011 9 8.05939e-01 1.22843e-01 255 2011 10 9.14769e-01 1.13992e-01 371 2011 11 1.13742e+00 3.79002e-01 556 2011 12 1.15143e+00 2.93037e-01 665 2012 1 1.36557e+00 2.50259e-01 469 2012 2 1.43724e+00 3.02047e-01 323 2012 3 1.55642e+00 4.97639e-01 384 2012 4 1.45947e+00 2.52329e-01 211 2012 5 1.73724e+00 2.91576e-01 267 2012 6 nan nan 0 2012 7 nan nan 0 2012 8 1.01544e+00 2.46429e-02 64 2012 9 8.64848e-01 8.75264e-02 80 2012 10 7.90804e-01 1.23983e-01 384 2012 11 1.04198e+00 1.81782e-01 537 2012 12 1.37563e+00 1.06187e+00 376 2013 1 1.36812e+00 4.51973e-01 634 2013 2 1.36443e+00 2.20350e-01 414 2013 3 1.54361e+00 2.40454e-01 453 2013 4 1.67331e+00 2.57314e-01 299 2013 5 1.78002e+00 5.19112e-01 205 2013 6 1.29520e+00 1.62510e-01 98 2013 7 7.91791e-01 1.55667e-01 63 2013 8 2.45677e+00 3.41863e+00 111 2013 9 9.94735e-01 2.31856e-01 243 2013 10 1.04924e+00 2.25260e-01 657 2013 11 1.25627e+00 2.19128e-01 87 2013 12 1.08995e+00 2.77337e-01 511 2014 1 1.42054e+00 2.35090e-01 327 2014 2 1.45508e+00 3.54930e-01 426 2014 3 1.46886e+00 3.02576e-01 418 2014 4 1.67241e+00 3.07931e-01 396 2014 5 1.65749e+00 2.26217e-01 184 2014 6 1.62914e+00 2.09835e-01 128 2014 7 nan nan 0 2014 8 1.41818e+00 2.44981e-01 169 2014 9 1.40229e+00 2.51876e-01 169 2014 10 9.86850e-01 1.58439e-01 678 2014 11 9.79929e-01 2.60568e-01 512 2014 12 1.11769e+00 2.28389e-01 373 2015 1 1.31638e+00 2.41997e-01 268 2015 2 1.24788e+00 2.26980e-01 500 2015 3 1.35291e+00 2.49801e-01 491 2015 4 1.17082e+00 2.55049e-01 139 2015 5 1.54250e+00 1.73682e-01 264 2015 6 1.52811e+00 2.65438e-01 165 2015 7 nan nan 0 2015 8 7.92022e-01 2.79688e-01 54 2015 9 1.03872e+00 6.30344e-01 188 2015 10 9.82081e-01 4.99593e-01 247 2015 11 1.23336e+00 3.04816e-01 213 2015 12 1.25707e+00 2.91198e-01 217 2016 1 1.21433e+00 1.37498e-01 325 2016 2 1.24193e+00 2.86622e-01 751 2016 3 1.47403e+00 2.30234e-01 313 2016 4 1.35936e+00 3.13053e-01 223 2016 5 1.37453e+00 4.01960e-01 166 2016 6 2.06254e+00 4.17890e-01 66 2016 7 1.34095e+00 2.02519e-01 255 2016 8 1.58131e+00 9.05851e-01 214 2016 9 1.02568e+00 8.41749e-02 190 2016 10 1.01036e+00 3.24887e-01 460 2016 11 9.17084e-01 3.34056e-01 361 2016 12 1.21069e+00 2.29948e-01 479 2017 1 1.26239e+00 2.72224e-01 315 2017 2 1.50510e+00 3.33843e-01 892 2017 3 1.73671e+00 5.11822e-01 633 2017 4 1.83513e+00 2.24665e-01 283 2017 5 1.60605e+00 3.46018e-01 281 2017 6 1.48586e+00 2.44347e-01 62 2017 7 1.77891e+00 2.34448e-01 169 2017 8 2.19156e+00 1.00363e+00 86 2017 9 9.49513e-01 2.18328e-01 177 2017 10 6.57052e-01 2.43021e-01 99 2017 11 9.22525e-01 2.18039e-01 454 2017 12 1.12847e+00 3.26935e-01 414 2018 1 1.26896e+00 2.11677e-01 461 2018 2 1.47803e+00 2.05340e-01 447 2018 3 1.29859e+00 1.83178e-01 815 2018 4 1.20506e+00 2.22269e-01 431 2018 5 1.51920e+00 2.20772e-01 139 2018 6 1.77636e+00 3.04688e-01 173 2018 7 1.63323e+00 8.70148e-02 94 2018 8 1.30453e+00 2.83114e-01 268 2018 9 1.02883e+00 1.13026e-01 407 2018 10 1.10573e+00 2.60232e-01 617 2018 11 1.01684e+00 2.38671e-01 340 2018 12 1.23100e+00 2.98467e-01 461 2019 1 1.11609e+00 2.48725e-01 338 2019 2 1.20525e+00 2.58770e-01 474 2019 3 1.22432e+00 4.50421e-01 431 2019 4 1.27109e+00 1.78138e-01 303 2019 5 1.57591e+00 1.48712e-01 127 2019 6 1.37177e+00 1.87888e-02 36 2019 7 1.98934e+00 5.83618e-01 68 2019 8 8.84872e-01 2.43074e-02 64 2019 9 2.13487e+00 4.34508e+00 175 2019 10 1.18990e+00 6.27015e-01 280 2019 11 1.11593e+00 1.82630e-01 329 2019 12 1.14868e+00 1.70986e-01 167 2020 1 1.19611e+00 2.29967e-01 486 2020 2 1.20583e+00 1.72005e-01 319 2020 3 1.14461e+00 2.38659e-01 483 2020 4 1.11913e+00 5.46250e-02 121 2020 5 1.51539e+00 4.37040e-01 385 2020 6 1.58427e+00 1.84853e-01 139 2020 7 1.26741e+00 1.53212e-01 86 2020 8 1.39358e+00 2.69954e-01 132 2020 9 9.99389e-01 2.69468e-02 55 2020 10 1.05281e+00 1.79933e-01 340 2020 11 8.98792e-01 2.36318e-01 362 2020 12 1.17689e+00 1.88810e-01 267 2021 1 1.14193e+00 1.85589e-01 451 2021 2 1.27427e+00 2.37328e-01 505 2021 3 1.21143e+00 1.15434e-01 248 2021 4 1.27453e+00 1.89517e-01 263 2021 5 1.66685e+00 3.62746e-01 370 2021 6 2.00479e+00 9.61399e-02 64 2021 7 9.25441e-01 1.32398e-01 38 2021 8 1.11658e+00 4.95249e-01 122 2021 9 1.03339e+00 2.56231e-01 345 2021 10 1.00816e+00 1.29605e-01 364 2021 11 9.40134e-01 2.64424e-01 479 2021 12 1.04269e+00 2.06006e-01 407 2022 1 1.17770e+00 2.68253e-01 548 2022 2 1.54657e+00 2.98303e-01 615 2022 3 1.15913e+00 2.40472e-01 484 2022 4 1.46929e+00 6.37452e-02 33 2022 5 1.64465e+00 1.97617e-01 345 2022 6 1.51506e+00 8.18200e-02 123 2022 7 1.90393e+00 2.07055e-01 64 2022 8 2.38557e+00 5.44543e-01 43 2022 9 1.18510e+00 2.57024e-01 189 2022 10 1.08983e+00 2.56307e-01 733 2022 11 1.16429e+00 2.33296e-01 329 2022 12 1.12982e+00 1.52511e-01 507 2023 1 1.14371e+00 1.33128e-01 588 2023 2 1.28485e+00 1.82712e-01 634 2023 3 1.22757e+00 2.93562e-01 534 2023 4 1.47696e+00 2.12933e-01 273 2023 5 1.85940e+00 3.29912e-01 209 2023 6 1.65237e+00 2.10590e-01 167 2023 7 1.79766e+00 3.75469e-01 142 2023 8 1.94054e+00 3.44048e-01 122 2023 9 1.80072e+00 1.84390e+00 269 2023 10 1.44319e+00 4.47808e-01 432 2023 11 1.30101e+00 2.80706e-01 533 2023 12 1.69744e+00 2.80908e-01 234 2024 1 1.56951e+00 2.87294e-01 239 2024 2 1.69522e+00 3.31544e-01 563 2024 3 1.46293e+00 4.56279e-01 351 2024 4 nan nan 0