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 2.47894e+00 8.16250e-01 148 2002 8 2.26527e+00 4.68021e-01 85 2002 9 3.07372e+00 9.84262e-01 254 2002 10 5.76473e+00 2.04895e+00 409 2002 11 6.53959e+00 2.76629e+00 553 2002 12 5.88598e+00 1.74440e+00 398 2003 1 5.06340e+00 2.59035e+00 467 2003 2 4.37311e+00 1.24406e+00 499 2003 3 2.90519e+00 5.05585e-01 183 2003 4 4.35726e+00 1.26159e+00 367 2003 5 3.42618e+00 8.20550e-01 302 2003 6 2.00212e+00 1.62733e+00 54 2003 7 1.12148e+00 3.63193e-01 135 2003 8 1.33014e+00 4.15816e-01 144 2003 9 1.37928e+00 6.34987e-01 227 2003 10 2.08345e+00 9.03406e-01 444 2003 11 3.03573e+00 1.39136e+00 578 2003 12 4.21215e+00 1.39568e+00 604 2004 1 5.07934e+00 2.42764e+00 661 2004 2 6.74428e+00 3.41512e+00 473 2004 3 4.71450e+00 2.18384e+00 374 2004 4 4.53642e+00 2.66964e+00 306 2004 5 2.98258e+00 7.36239e-01 311 2004 6 3.52639e+00 7.71410e-01 318 2004 7 3.78703e+00 1.14054e+00 312 2004 8 2.14410e+00 7.61980e-01 285 2004 9 4.02228e+00 1.27021e+00 95 2004 10 3.33249e+00 1.56753e+00 417 2004 11 1.93876e+00 8.55494e-01 492 2004 12 4.89380e+00 3.04843e+00 419 2005 1 5.43734e+00 3.14014e+00 728 2005 2 4.78740e+00 1.66346e+00 468 2005 3 4.29154e+00 8.33395e-01 268 2005 4 5.40012e+00 2.20420e+00 344 2005 5 2.98647e+00 5.24035e-01 195 2005 6 1.63883e+00 1.52387e-01 36 2005 7 1.45141e+00 2.55093e-01 176 2005 8 1.79191e+00 7.14740e-01 301 2005 9 1.90001e+00 8.85401e-01 328 2005 10 4.08573e+00 3.36161e+00 394 2005 11 3.32983e+00 1.51477e+00 448 2005 12 2.78977e+00 1.10755e+00 622 2006 1 5.84750e+00 3.29503e+00 499 2006 2 5.36096e+00 2.97981e+00 605 2006 3 5.64402e+00 1.48427e+00 664 2006 4 3.10310e+00 9.53218e-01 278 2006 5 2.32127e+00 9.11701e-01 362 2006 6 6.59615e+00 3.29526e+00 242 2006 7 8.09104e+00 0.00000e+00 1 2006 8 2.17025e+00 9.21978e-01 265 2006 9 1.19577e+00 6.43376e-01 347 2006 10 1.93920e+00 7.47089e-01 680 2006 11 2.56169e+00 5.36758e-01 586 2006 12 2.88156e+00 1.49094e+00 189 2007 1 3.66633e+00 1.82005e+00 526 2007 2 4.79262e+00 2.30958e+00 665 2007 3 5.98491e+00 2.16660e+00 168 2007 4 3.98072e+00 1.33629e+00 213 2007 5 4.12799e+00 2.10700e+00 97 2007 6 4.87262e+00 1.03801e+00 330 2007 7 3.80521e+00 9.18151e-01 290 2007 8 6.33100e+00 1.37137e+00 126 2007 9 3.58216e+00 1.22551e+00 357 2007 10 4.52165e+00 1.41524e+00 232 2007 11 2.21943e+00 7.42735e-01 645 2007 12 3.23326e+00 1.36333e+00 682 2008 1 3.96553e+00 1.93214e+00 502 2008 2 2.87513e+00 1.36737e+00 526 2008 3 4.20114e+00 1.11026e+00 509 2008 4 4.23979e+00 1.34745e+00 383 2008 5 6.87124e+00 1.09097e+00 225 2008 6 5.34821e+00 1.17086e+00 219 2008 7 4.37397e+00 1.46023e+00 137 2008 8 3.16469e+00 1.03734e+00 171 2008 9 2.45799e+00 6.41593e-01 159 2008 10 4.89428e+00 1.13687e+00 474 2008 11 3.02494e+00 5.90136e-01 711 2008 12 4.84740e+00 2.02014e+00 924 2009 1 6.19944e+00 1.77874e+00 695 2009 2 7.60464e+00 1.80077e+00 682 2009 3 6.51320e+00 2.08213e+00 295 2009 4 7.01428e+00 2.06214e+00 172 2009 5 6.48219e+00 1.40570e+00 301 2009 6 8.27805e+00 1.76498e+00 158 2009 7 3.72586e+00 1.13564e+00 243 2009 8 2.56725e+00 7.94300e-01 175 2009 9 2.36146e+00 9.63582e-01 207 2009 10 2.27383e+00 1.07689e+00 634 2009 11 2.95615e+00 1.18893e+00 449 2009 12 3.03665e+00 2.18468e+00 369 2010 1 5.43652e+00 2.35373e+00 539 2010 2 9.72929e+00 4.75378e+00 378 2010 3 6.96872e+00 1.79169e+00 518 2010 4 4.04103e+00 1.54588e+00 309 2010 5 4.36071e+00 1.86428e+00 320 2010 6 3.47596e+00 1.17978e+00 397 2010 7 4.43757e+00 1.61071e+00 122 2010 8 4.16684e+00 1.32957e+00 162 2010 9 3.35260e+00 1.39915e+00 63 2010 10 3.34774e+00 1.39384e+00 705 2010 11 4.26311e+00 1.89926e+00 714 2010 12 8.15268e+00 3.86923e+00 666 2011 1 7.79854e+00 2.74867e+00 434 2011 2 7.45696e+00 2.59286e+00 702 2011 3 6.57183e+00 2.75084e+00 777 2011 4 6.62009e+00 2.01072e+00 395 2011 5 6.84739e+00 1.71021e+00 250 2011 6 6.11291e+00 1.28080e+00 233 2011 7 3.80136e+00 1.01183e+00 190 2011 8 4.11391e+00 1.06409e+00 134 2011 9 3.37901e+00 1.45085e+00 275 2011 10 3.79662e+00 1.51375e+00 312 2011 11 4.59956e+00 1.70259e+00 542 2011 12 7.60012e+00 2.24478e+00 756 2012 1 7.45330e+00 2.08799e+00 719 2012 2 5.59396e+00 1.90247e+00 537 2012 3 5.91415e+00 2.78603e+00 503 2012 4 6.07478e+00 9.22014e-01 195 2012 5 5.97709e+00 1.30639e+00 284 2012 6 5.62626e+00 1.68683e+00 58 2012 7 4.50576e+00 7.65269e-01 98 2012 8 2.68392e+00 5.51868e-01 106 2012 9 3.08844e+00 1.82635e+00 226 2012 10 2.10362e+00 7.63048e-01 398 2012 11 6.11186e+00 1.61514e+00 495 2012 12 7.00219e+00 3.05838e+00 402 2013 1 5.27590e+00 1.31129e+00 625 2013 2 4.46659e+00 1.29864e+00 684 2013 3 5.91878e+00 1.30083e+00 535 2013 4 5.48701e+00 9.65094e-01 267 2013 5 4.92388e+00 1.44356e+00 324 2013 6 3.64512e+00 6.29714e-01 242 2013 7 2.48620e+00 5.47654e-01 107 2013 8 8.96201e-01 4.21778e-01 81 2013 9 7.52858e-01 1.72943e-01 119 2013 10 1.36979e+00 6.02360e-01 617 2013 11 3.28981e+00 1.40189e+00 183 2013 12 3.90753e+00 1.26947e+00 570 2014 1 4.86796e+00 1.91338e+00 609 2014 2 5.66262e+00 2.75274e+00 623 2014 3 6.89994e+00 1.89391e+00 591 2014 4 7.23392e+00 2.31649e+00 341 2014 5 8.50346e+00 1.56277e+00 173 2014 6 4.43563e+00 6.34050e-01 161 2014 7 4.76893e+00 1.23602e+00 189 2014 8 2.93010e+00 9.58779e-01 210 2014 9 3.18177e+00 5.85768e-01 244 2014 10 1.95455e+00 5.53409e-01 582 2014 11 2.37167e+00 7.36737e-01 629 2014 12 2.74914e+00 1.58866e+00 575 2015 1 6.37746e+00 3.05868e+00 537 2015 2 6.00764e+00 2.52221e+00 505 2015 3 4.16951e+00 1.15487e+00 636 2015 4 3.98232e+00 8.56520e-01 120 2015 5 5.82606e+00 1.75506e+00 284 2015 6 4.07537e+00 7.61730e-01 198 2015 7 3.81652e+00 7.25999e-01 80 2015 8 2.93741e+00 1.11428e+00 228 2015 9 1.69560e+00 6.66241e-01 225 2015 10 2.80029e+00 9.58577e-01 284 2015 11 2.43438e+00 1.54738e+00 568 2015 12 1.40007e+00 7.27982e-01 234 2016 1 3.94235e+00 2.47283e+00 269 2016 2 6.12702e+00 4.16384e+00 480 2016 3 4.73544e+00 2.58949e+00 340 2016 4 7.25889e+00 3.37032e+00 308 2016 5 3.58168e+00 1.44472e+00 280 2016 6 2.50071e+00 1.08613e+00 186 2016 7 1.78133e+00 3.08451e-01 216 2016 8 2.19977e+00 3.20880e-01 130 2016 9 2.15167e+00 8.74127e-01 298 2016 10 3.09201e+00 1.24668e+00 283 2016 11 3.43530e+00 1.74159e+00 550 2016 12 3.03414e+00 1.19869e+00 527 2017 1 5.92861e+00 3.32964e+00 503 2017 2 7.21392e+00 1.46263e+00 619 2017 3 7.20294e+00 2.56732e+00 507 2017 4 5.99479e+00 1.24905e+00 249 2017 5 7.20458e+00 3.80981e+00 341 2017 6 2.92745e+00 4.87802e-01 144 2017 7 2.53159e+00 2.59204e-01 57 2017 8 2.10997e+00 7.58409e-01 188 2017 9 2.24179e+00 1.51255e+00 339 2017 10 2.41281e+00 5.99931e-01 114 2017 11 2.10522e+00 9.48766e-01 518 2017 12 3.08973e+00 1.40504e+00 980 2018 1 5.22185e+00 2.80856e+00 425 2018 2 3.86849e+00 9.99270e-01 573 2018 3 4.77823e+00 1.93462e+00 778 2018 4 4.50009e+00 6.41117e-01 517 2018 5 4.00970e+00 7.26216e-01 75 2018 6 3.89119e+00 1.06240e+00 246 2018 7 1.75847e+00 7.74665e-01 169 2018 8 8.56704e-01 1.28583e-01 50 2018 9 9.81896e-01 4.43335e-01 227 2018 10 1.74504e+00 7.60890e-01 187 2018 11 2.26102e+00 7.84042e-01 324 2018 12 3.16708e+00 1.67638e+00 512 2019 1 4.90149e+00 3.86412e+00 706 2019 2 4.21711e+00 1.88777e+00 365 2019 3 6.34887e+00 2.68616e+00 437 2019 4 3.46887e+00 1.71178e+00 349 2019 5 2.79811e+00 7.92517e-01 298 2019 6 4.72840e+00 1.45561e+00 303 2019 7 3.50459e+00 1.61410e+00 331 2019 8 1.72490e+00 1.37496e+00 170 2019 9 2.55262e+00 6.82094e-01 349 2019 10 2.45853e+00 1.34667e+00 386 2019 11 3.89812e+00 2.32565e+00 477 2019 12 6.26695e+00 1.67776e+00 475 2020 1 4.76089e+00 1.12862e+00 700 2020 2 4.97463e+00 2.82204e+00 367 2020 3 5.07752e+00 2.36471e+00 367 2020 4 4.91596e+00 1.61659e+00 242 2020 5 4.24230e+00 1.17634e+00 321 2020 6 2.76710e+00 6.24422e-01 252 2020 7 2.75167e+00 2.37526e-01 64 2020 8 4.87263e+00 1.62294e+00 217 2020 9 1.00239e+00 8.28080e-01 166 2020 10 1.21851e+00 2.51612e-01 64 2020 11 2.42751e+00 1.33461e+00 218 2020 12 3.43111e+00 1.66956e+00 442 2021 1 3.06519e+00 9.01898e-01 579 2021 2 4.85467e+00 2.57343e+00 658 2021 3 2.54185e+00 8.00094e-01 405 2021 4 2.91200e+00 1.09779e+00 404 2021 5 3.32346e+00 1.36329e+00 242 2021 6 3.28834e+00 5.00446e-01 118 2021 7 3.25128e+00 8.24635e-01 124 2021 8 2.55237e+00 7.15990e-01 68 2021 9 2.07648e+00 7.68338e-01 141 2021 10 2.56610e+00 1.17463e+00 526 2021 11 2.62432e+00 6.49361e-01 518 2021 12 3.76891e+00 2.78008e+00 779 2022 1 6.26806e+00 2.83024e+00 666 2022 2 6.61660e+00 3.58264e+00 552 2022 3 4.54405e+00 2.13524e+00 738 2022 4 3.94803e+00 8.10751e-01 62 2022 5 4.37279e+00 1.47409e+00 409 2022 6 2.88833e+00 1.02315e+00 172 2022 7 2.57722e+00 1.03832e+00 175 2022 8 3.24504e+00 7.53234e-01 262 2022 9 4.22120e+00 3.37373e+00 259 2022 10 2.23201e+00 1.23810e+00 516 2022 11 2.83891e+00 1.42424e+00 513 2022 12 5.47863e+00 2.35356e+00 613 2023 1 5.63747e+00 3.36701e+00 895 2023 2 4.31884e+00 1.91598e+00 1084 2023 3 5.36409e+00 1.92872e+00 883 2023 4 4.75618e+00 1.04462e+00 390 2023 5 3.82941e+00 1.47469e+00 598 2023 6 2.09513e+00 6.34177e-01 188 2023 7 2.95944e+00 6.74656e-01 192 2023 8 2.18299e+00 1.18319e+00 184 2023 9 3.05339e+00 9.45246e-01 431 2023 10 1.98638e+00 1.17546e+00 453 2023 11 1.86263e+00 6.26351e-01 722 2023 12 3.42969e+00 3.39495e+00 392 2024 1 1.60958e+00 7.95677e-01 107 2024 2 4.28838e+00 2.86099e+00 799 2024 3 4.13995e+00 1.94898e+00 503 2024 4 nan nan 0