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 2.87905e+00 1.23817e+00 106 2002 8 2.00507e+00 9.36318e-01 96 2002 9 2.48786e+00 7.53709e-01 159 2002 10 3.00872e+00 8.80491e-01 375 2002 11 3.66019e+00 1.43481e+00 351 2002 12 2.37604e+00 1.33024e+00 389 2003 1 2.77779e+00 1.34013e+00 596 2003 2 2.98800e+00 1.33060e+00 467 2003 3 2.10958e+00 7.54794e-01 58 2003 4 3.13282e+00 6.36228e-01 249 2003 5 2.41058e+00 6.57327e-01 140 2003 6 2.10986e+00 2.57061e-01 68 2003 7 2.11909e+00 3.96522e-01 22 2003 8 2.24854e+00 8.29444e-01 140 2003 9 2.15138e+00 5.16109e-01 187 2003 10 3.02031e+00 6.38974e-01 239 2003 11 2.54190e+00 9.54118e-01 284 2003 12 3.43708e+00 9.42608e-01 543 2004 1 3.56284e+00 1.66217e+00 437 2004 2 3.87170e+00 1.51607e+00 217 2004 3 3.32883e+00 1.01700e+00 208 2004 4 3.43004e+00 6.26014e-01 274 2004 5 3.03924e+00 6.61779e-01 126 2004 6 2.66384e+00 5.70864e-01 193 2004 7 2.13960e+00 4.48953e-01 131 2004 8 1.67475e+00 5.14124e-01 86 2004 9 nan nan 0 2004 10 2.37186e+00 1.08479e+00 422 2004 11 2.70408e+00 9.18257e-01 450 2004 12 4.15717e+00 1.49933e+00 338 2005 1 3.37483e+00 1.33868e+00 540 2005 2 3.05895e+00 1.12770e+00 453 2005 3 3.52407e+00 1.63552e+00 315 2005 4 3.82950e+00 8.84471e-01 495 2005 5 3.02985e+00 4.92358e-01 58 2005 6 2.09276e+00 8.74914e-01 92 2005 7 2.38257e+00 1.02673e+00 112 2005 8 1.98642e+00 9.02571e-01 86 2005 9 2.96564e+00 6.22373e-01 191 2005 10 2.63047e+00 6.70346e-01 428 2005 11 2.72545e+00 1.02435e+00 523 2005 12 2.71302e+00 1.59532e+00 545 2006 1 3.73123e+00 1.80928e+00 526 2006 2 3.50673e+00 1.55952e+00 517 2006 3 2.97798e+00 1.26901e+00 806 2006 4 2.67037e+00 1.05707e+00 226 2006 5 2.27308e+00 6.99238e-01 281 2006 6 2.07797e+00 7.67355e-01 198 2006 7 2.09738e+00 4.69346e-01 64 2006 8 2.20120e+00 8.83137e-01 221 2006 9 2.32929e+00 8.09933e-01 186 2006 10 2.46075e+00 1.02412e+00 546 2006 11 2.62808e+00 1.15766e+00 550 2006 12 2.73398e+00 2.34919e+00 291 2007 1 2.52359e+00 1.55400e+00 227 2007 2 3.09653e+00 1.77220e+00 320 2007 3 3.33672e+00 1.36958e+00 465 2007 4 3.48706e+00 8.16734e-01 222 2007 5 3.20065e+00 6.18361e-01 130 2007 6 2.37656e+00 6.31926e-01 89 2007 7 3.62922e+00 3.17759e+00 64 2007 8 2.08003e+00 7.34302e-01 149 2007 9 2.54711e+00 7.71400e-01 187 2007 10 2.32966e+00 8.04690e-01 201 2007 11 2.18068e+00 1.10121e+00 610 2007 12 2.60548e+00 1.49179e+00 620 2008 1 4.06152e+00 1.55115e+00 375 2008 2 3.32972e+00 1.53566e+00 379 2008 3 3.39471e+00 1.41792e+00 417 2008 4 3.94012e+00 8.05197e-01 365 2008 5 3.53295e+00 7.24801e-01 197 2008 6 1.74142e+00 5.04608e-01 63 2008 7 1.82671e+00 2.26504e-01 39 2008 8 3.52424e+00 5.12651e-01 116 2008 9 1.74113e+00 9.69378e-01 185 2008 10 3.30988e+00 1.57181e+00 426 2008 11 2.69061e+00 1.13409e+00 850 2008 12 3.01285e+00 1.35562e+00 492 2009 1 3.28470e+00 1.68622e+00 566 2009 2 3.74415e+00 1.65720e+00 526 2009 3 3.26803e+00 1.32215e+00 453 2009 4 3.54500e+00 1.02157e+00 199 2009 5 2.87993e+00 9.54380e-01 299 2009 6 3.03678e+00 2.81215e-01 44 2009 7 2.52695e+00 3.28711e-01 22 2009 8 3.03215e+00 2.40242e-01 56 2009 9 1.69084e+00 7.25523e-01 273 2009 10 2.05333e+00 7.36082e-01 461 2009 11 1.77895e+00 8.41954e-01 344 2009 12 3.29599e+00 9.89546e-01 184 2010 1 3.27475e+00 1.37834e+00 441 2010 2 3.63917e+00 1.58090e+00 463 2010 3 3.37128e+00 1.32646e+00 519 2010 4 3.62002e+00 1.08100e+00 324 2010 5 3.96046e+00 7.31342e-01 85 2010 6 1.86829e+00 7.94442e-01 141 2010 7 1.85159e+00 1.01934e+00 54 2010 8 2.72192e+00 2.46212e-01 51 2010 9 2.81801e+00 6.95065e-01 253 2010 10 3.12364e+00 8.06443e-01 722 2010 11 2.97695e+00 1.03837e+00 646 2010 12 3.73620e+00 1.40841e+00 744 2011 1 3.79360e+00 1.35373e+00 461 2011 2 3.32940e+00 2.05999e+00 441 2011 3 2.93105e+00 1.18830e+00 590 2011 4 2.66796e+00 1.19750e+00 443 2011 5 2.97606e+00 5.38517e-01 217 2011 6 3.08236e+00 2.25913e-01 80 2011 7 2.32308e+00 1.06924e+00 168 2011 8 2.86192e+00 7.13981e-01 65 2011 9 2.81060e+00 5.30356e-01 255 2011 10 3.00975e+00 4.97182e-01 371 2011 11 2.63968e+00 1.16968e+00 556 2011 12 2.65574e+00 1.28785e+00 665 2012 1 2.85812e+00 1.65350e+00 469 2012 2 2.88823e+00 1.42133e+00 323 2012 3 2.67135e+00 2.78141e+00 366 2012 4 2.79524e+00 9.16446e-01 211 2012 5 2.88770e+00 5.19306e-01 267 2012 6 nan nan 0 2012 7 nan nan 0 2012 8 2.35382e+00 4.41431e-01 64 2012 9 2.30298e+00 3.40128e-01 80 2012 10 2.72260e+00 9.72558e-01 384 2012 11 2.31948e+00 1.11216e+00 537 2012 12 2.14636e+00 1.36401e+00 373 2013 1 2.09179e+00 1.48109e+00 632 2013 2 2.26550e+00 1.30468e+00 414 2013 3 2.72705e+00 1.35639e+00 453 2013 4 2.53937e+00 7.55094e-01 299 2013 5 1.98403e+00 1.03653e+00 203 2013 6 2.09161e+00 4.39126e-01 98 2013 7 2.50806e+00 3.67039e-01 63 2013 8 1.94499e+00 7.41189e-01 111 2013 9 2.22183e+00 6.63737e-01 243 2013 10 1.94203e+00 8.13419e-01 657 2013 11 1.73197e+00 6.26137e-01 87 2013 12 2.52386e+00 1.45337e+00 511 2014 1 3.23744e+00 1.52482e+00 327 2014 2 2.42647e+00 1.30569e+00 426 2014 3 2.79458e+00 1.42840e+00 418 2014 4 1.98969e+00 1.13108e+00 396 2014 5 2.42447e+00 7.38350e-01 184 2014 6 2.76642e+00 7.11132e-01 128 2014 7 nan nan 0 2014 8 1.69421e+00 5.48441e-01 169 2014 9 2.14234e+00 1.00520e+00 169 2014 10 2.01910e+00 6.42748e-01 683 2014 11 2.20292e+00 1.01220e+00 510 2014 12 2.01153e+00 1.02971e+00 373 2015 1 2.10352e+00 1.16491e+00 268 2015 2 2.90835e+00 1.58301e+00 500 2015 3 2.70880e+00 9.47979e-01 491 2015 4 2.95130e+00 6.80361e-01 139 2015 5 2.44490e+00 7.14824e-01 264 2015 6 2.06742e+00 8.52864e-01 165 2015 7 nan nan 0 2015 8 1.06419e+00 3.99897e-01 54 2015 9 1.44357e+00 4.96433e-01 189 2015 10 1.30596e+00 7.60871e-01 239 2015 11 1.15446e+00 6.59148e-01 208 2015 12 2.39721e+00 1.22462e+00 220 2016 1 2.91970e+00 1.22922e+00 325 2016 2 3.27504e+00 1.55832e+00 750 2016 3 2.46822e+00 1.19479e+00 313 2016 4 1.80840e+00 8.86923e-01 229 2016 5 1.56552e+00 5.44558e-01 166 2016 6 1.87615e+00 6.27985e-01 66 2016 7 3.05265e+00 9.05109e-01 255 2016 8 2.15987e+00 9.03024e-01 200 2016 9 1.66088e+00 2.97708e-01 190 2016 10 1.56418e+00 7.67225e-01 453 2016 11 1.92539e+00 1.11051e+00 361 2016 12 2.01652e+00 1.36403e+00 468 2017 1 2.97107e+00 1.69952e+00 315 2017 2 2.15524e+00 1.86169e+00 883 2017 3 2.49734e+00 1.72445e+00 632 2017 4 1.86137e+00 9.58513e-01 283 2017 5 2.46027e+00 6.91141e-01 281 2017 6 1.59928e+00 2.64525e-01 62 2017 7 1.54077e+00 5.49534e-01 169 2017 8 1.79537e+00 3.19246e-01 64 2017 9 2.03293e+00 7.38002e-01 177 2017 10 1.60885e+00 6.02975e-01 99 2017 11 1.96602e+00 1.22238e+00 454 2017 12 2.40510e+00 1.21685e+00 414 2018 1 3.35117e+00 1.65721e+00 461 2018 2 3.01438e+00 1.59868e+00 447 2018 3 3.41856e+00 1.20641e+00 815 2018 4 3.92510e+00 7.08969e-01 431 2018 5 3.01734e+00 9.97658e-01 136 2018 6 1.57517e+00 7.24937e-01 173 2018 7 2.35403e+00 5.22343e-01 94 2018 8 2.04393e+00 1.08499e+00 257 2018 9 2.32521e+00 6.67707e-01 407 2018 10 2.03033e+00 1.07429e+00 615 2018 11 2.72011e+00 1.23693e+00 340 2018 12 2.51722e+00 1.41077e+00 458 2019 1 2.67763e+00 1.49471e+00 338 2019 2 2.58475e+00 1.23736e+00 474 2019 3 3.10672e+00 1.23002e+00 431 2019 4 3.30580e+00 7.86559e-01 303 2019 5 3.16892e+00 4.88417e-01 127 2019 6 4.46065e+00 5.79014e+00 36 2019 7 1.64404e+00 5.25076e-01 68 2019 8 2.54758e+00 3.58094e-01 64 2019 9 1.75312e+00 8.24459e-01 171 2019 10 1.94308e+00 1.87629e+00 280 2019 11 2.85584e+00 1.23559e+00 329 2019 12 3.26348e+00 1.23849e+00 167 2020 1 2.73424e+00 1.42128e+00 485 2020 2 3.66360e+00 1.43735e+00 319 2020 3 4.38295e+00 1.05963e+00 483 2020 4 4.04172e+00 5.98282e-01 121 2020 5 1.86080e+00 8.43578e-01 385 2020 6 2.65262e+00 6.19740e-01 139 2020 7 2.38587e+00 1.29611e+00 86 2020 8 2.61437e+00 1.23491e+00 136 2020 9 2.85022e+00 2.61248e-01 55 2020 10 1.93208e+00 1.01185e+00 336 2020 11 3.24046e+00 1.01344e+00 362 2020 12 2.38139e+00 9.50523e-01 267 2021 1 3.19465e+00 1.76670e+00 451 2021 2 3.53323e+00 1.86817e+00 505 2021 3 3.46107e+00 9.37248e-01 248 2021 4 3.40979e+00 8.45374e-01 263 2021 5 2.73221e+00 1.22698e+00 370 2021 6 2.00940e+00 6.49294e-01 64 2021 7 2.77691e+00 3.37092e-01 38 2021 8 1.47278e+00 4.79428e-01 123 2021 9 2.07883e+00 7.09614e-01 345 2021 10 2.05599e+00 9.41180e-01 360 2021 11 2.54272e+00 1.21614e+00 486 2021 12 2.77787e+00 9.78982e-01 407 2022 1 3.58344e+00 1.67526e+00 548 2022 2 2.62562e+00 1.39442e+00 610 2022 3 4.21568e+00 1.16614e+00 484 2022 4 3.40177e+00 5.37531e-01 33 2022 5 2.79671e+00 8.67817e-01 345 2022 6 3.63932e+00 5.09192e-01 123 2022 7 2.67629e+00 1.05801e+00 64 2022 8 1.21792e+00 6.69543e-01 43 2022 9 3.16830e+00 1.17708e+00 189 2022 10 1.86877e+00 8.04246e-01 731 2022 11 2.03975e+00 7.20395e-01 329 2022 12 2.47787e+00 7.54038e-01 505 2023 1 2.90540e+00 1.72540e+00 587 2023 2 2.81446e+00 1.40061e+00 628 2023 3 3.52056e+00 9.64440e-01 520 2023 4 3.08803e+00 6.96849e-01 273 2023 5 2.11468e+00 8.45539e-01 209 2023 6 2.05194e+00 5.54669e-01 167 2023 7 1.79332e+00 8.42790e-01 139 2023 8 2.18110e+00 1.57251e+00 122 2023 9 1.99221e+00 9.35195e-01 269 2023 10 2.54711e+00 1.09034e+00 431 2023 11 2.84540e+00 1.32506e+00 531 2023 12 2.16759e+00 1.54535e+00 231 2024 1 2.93697e+00 1.73743e+00 234 2024 2 3.19785e+00 1.84759e+00 563 2024 3 3.46583e+00 1.86309e+00 348 2024 4 nan nan 0