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 9.21549e+03 4.73105e+04 145 2002 8 3.07321e+00 1.02803e+01 163 2002 9 1.30187e+00 2.00063e+00 98 2002 10 1.25321e+00 1.16434e+00 457 2002 11 1.29507e+00 6.44358e-01 365 2002 12 1.42196e+00 2.38197e+00 368 2003 1 1.56532e+00 6.08119e-01 530 2003 2 1.14757e+00 1.81647e-01 458 2003 3 2.08404e+01 8.95944e+01 128 2003 4 6.81880e+02 3.53814e+03 177 2003 5 1.19512e+02 7.73892e+02 48 2003 6 1.97111e+00 1.11647e+00 15 2003 7 9.21239e-01 8.03610e-02 47 2003 8 1.40716e+01 2.85200e+01 24 2003 9 1.23945e+01 7.43393e+01 198 2003 10 1.65253e+00 2.34966e+00 255 2003 11 1.38881e+00 2.26112e+00 469 2003 12 9.90806e-01 1.42869e-01 441 2004 1 1.15426e+00 1.34337e+00 329 2004 2 9.30273e-01 2.08400e-01 242 2004 3 1.62820e+00 3.82044e+00 511 2004 4 8.78916e-01 2.39388e-01 228 2004 5 1.79198e+00 3.83820e+00 158 2004 6 7.66469e-01 5.05482e-01 137 2004 7 3.99502e-01 2.25264e-01 122 2004 8 1.38891e+00 8.91806e-01 176 2004 9 9.81218e-01 2.61439e-01 123 2004 10 2.13121e+00 2.99193e-01 24 2004 11 1.29429e+02 3.17782e+02 35 2004 12 1.43139e+00 2.68767e-01 124 2005 1 1.37300e+00 2.38423e-01 351 2005 2 2.32142e+00 3.36810e+00 235 2005 3 1.30170e+00 4.46003e-01 294 2005 4 1.63623e+00 1.13940e+00 250 2005 5 2.22576e+00 3.74609e+00 103 2005 6 1.38975e+00 1.79024e+00 59 2005 7 nan nan 0 2005 8 2.87873e+00 4.42922e+00 63 2005 9 1.50508e+03 1.65587e+04 157 2005 10 1.49418e+00 8.97830e-01 371 2005 11 1.04589e+00 4.71626e-01 435 2005 12 1.09537e+00 4.25432e-01 401 2006 1 1.50273e+00 3.32214e-01 390 2006 2 1.64003e+00 5.07812e-01 393 2006 3 7.09470e+01 6.57188e+02 661 2006 4 9.66197e-01 2.40342e-01 221 2006 5 1.09988e+00 6.63926e-01 109 2006 6 7.91190e-01 4.37046e-01 61 2006 7 1.27127e+00 9.20533e-01 39 2006 8 1.02213e+00 4.96683e-01 73 2006 9 1.07310e+00 8.12802e-01 138 2006 10 1.30766e+00 6.01689e-01 172 2006 11 1.34584e+00 2.47942e+00 313 2006 12 1.00871e+00 8.08650e-01 264 2007 1 1.38337e+00 1.64492e+00 165 2007 2 8.69177e-01 1.46291e-01 392 2007 3 8.21950e-01 1.81804e-01 603 2007 4 8.69654e-01 3.75420e-01 303 2007 5 6.82236e-01 6.11264e-02 53 2007 6 9.92700e-01 7.16821e-01 133 2007 7 9.43039e-01 3.13706e-01 42 2007 8 1.03690e+00 4.11090e-01 122 2007 9 9.41030e-01 1.27766e-01 127 2007 10 2.63943e+00 2.19803e+01 359 2007 11 2.08801e+00 1.39010e+01 489 2007 12 1.62589e+00 5.97311e+00 282 2008 1 1.41244e+00 1.42069e+00 263 2008 2 9.97648e-01 2.63735e-01 560 2008 3 1.59574e+00 3.59805e+00 398 2008 4 3.75320e+01 1.84025e+02 237 2008 5 1.54504e+00 2.50450e+00 168 2008 6 9.19177e-01 4.01165e-01 126 2008 7 2.02567e+00 1.13265e+00 44 2008 8 9.38305e-01 1.11575e+00 84 2008 9 7.58392e+00 4.49099e+01 88 2008 10 1.58152e+00 1.21376e+00 488 2008 11 1.25383e+00 7.22056e-01 474 2008 12 1.18222e+00 3.23325e-01 493 2009 1 1.23561e+00 4.56543e-01 409 2009 2 1.00340e+00 2.21926e-01 594 2009 3 9.13007e-01 1.75681e-01 454 2009 4 1.39422e+00 1.22029e+00 342 2009 5 1.34706e+03 5.28090e+03 65 2009 6 1.22341e+00 1.08847e+00 72 2009 7 5.14766e-01 4.74937e-02 9 2009 8 1.24753e+00 4.45040e-01 89 2009 9 2.18465e+00 3.26407e+00 255 2009 10 1.31629e+00 8.64645e-01 455 2009 11 1.53550e+00 7.32870e-01 273 2009 12 1.43766e+00 1.79777e+00 148 2010 1 1.08468e+00 2.07235e-01 527 2010 2 2.18389e+00 5.79481e-01 343 2010 3 4.93404e+00 2.29376e+01 557 2010 4 3.37035e+00 1.12842e+01 295 2010 5 3.64548e+00 1.47020e+01 292 2010 6 1.91314e+00 9.67753e-01 114 2010 7 1.48995e+00 8.12840e-01 133 2010 8 1.55773e+00 5.75793e-01 31 2010 9 1.33205e+00 7.22233e-01 263 2010 10 1.83607e+02 2.95352e+03 793 2010 11 9.94799e-01 4.93769e-01 573 2010 12 1.03373e+00 2.86310e-01 385 2011 1 9.72339e-01 2.47927e-01 426 2011 2 9.08086e-01 2.08342e-01 604 2011 3 9.79315e-01 2.05231e-01 704 2011 4 9.02974e-01 3.03284e-01 500 2011 5 9.46836e-01 4.74906e-01 271 2011 6 1.26391e+01 0.00000e+00 1 2011 7 1.28713e+00 9.63341e-01 83 2011 8 1.08522e+00 1.88747e-01 18 2011 9 1.11235e+00 5.88566e-01 488 2011 10 1.31169e+00 1.32772e+00 365 2011 11 9.63868e-01 3.65873e-01 670 2011 12 9.30162e-01 1.85950e-01 585 2012 1 1.00890e+00 2.93883e-01 636 2012 2 1.34610e+00 3.24855e-01 20 2012 3 7.47735e-01 1.25236e-01 560 2012 4 7.47836e-01 1.27254e-01 413 2012 5 8.17344e-01 3.83500e-01 218 2012 6 1.78808e+02 4.36046e+02 14 2012 7 6.50502e+01 4.09451e+02 47 2012 8 1.55023e+00 8.38256e-01 8 2012 9 2.45654e+00 2.99077e+00 85 2012 10 3.11169e+00 4.71345e+00 131 2012 11 1.36431e+00 2.32118e+00 458 2012 12 1.13142e+00 2.18375e-01 198 2013 1 1.09333e+00 4.35523e-01 474 2013 2 9.97106e-01 1.41504e-01 322 2013 3 1.04567e+00 2.20662e-01 446 2013 4 6.21391e+00 3.27194e+01 227 2013 5 1.58481e+00 2.15185e+00 207 2013 6 2.57124e+00 2.68104e+00 154 2013 7 nan nan 0 2013 8 1.04922e+03 2.42042e+03 28 2013 9 3.75160e+00 1.03654e+01 218 2013 10 1.71290e+00 1.28036e+00 363 2013 11 3.05147e+01 1.80352e+02 83 2013 12 1.04743e+00 1.89371e-01 322 2014 1 1.17145e+00 1.76058e-01 268 2014 2 1.02093e+00 1.53372e-01 519 2014 3 2.31326e+00 8.15278e+00 357 2014 4 3.01670e+01 2.84904e+02 220 2014 5 4.53933e+00 1.16536e+01 96 2014 6 1.93765e+00 5.16949e-01 30 2014 7 1.36732e+00 7.99810e-01 266 2014 8 1.76090e+00 1.55089e+00 137 2014 9 7.66594e-01 4.33125e-02 21 2014 10 1.25314e+00 1.62898e+00 847 2014 11 1.22211e+00 7.80133e-01 483 2014 12 1.06743e+00 2.92653e-01 309 2015 1 1.06288e+00 4.71694e-01 405 2015 2 1.09794e+00 1.62959e-01 480 2015 3 1.22900e+00 1.45211e-01 301 2015 4 3.14428e+00 3.97954e+00 82 2015 5 9.96528e-01 4.55415e-01 252 2015 6 8.86558e-01 1.90754e-01 111 2015 7 2.37799e-01 1.16882e-02 3 2015 8 9.52130e+01 4.51257e+02 76 2015 9 1.71224e+00 7.55521e-01 63 2015 10 1.29584e+00 6.99269e-01 361 2015 11 1.24765e+00 6.75346e-01 262 2015 12 1.15949e+00 3.35713e-01 305 2016 1 1.13698e+00 3.43338e-01 403 2016 2 1.22225e+00 6.41739e-01 701 2016 3 1.84747e+00 1.08934e+01 468 2016 4 1.29407e+00 8.71633e-01 190 2016 5 1.16544e+00 8.19710e-01 161 2016 6 4.94012e+00 3.49722e+01 185 2016 7 1.15411e+02 8.22742e+02 160 2016 8 6.95241e+01 9.49623e+02 261 2016 9 4.31031e+00 2.29894e+01 145 2016 10 1.33968e+00 6.00652e-01 402 2016 11 1.07202e+00 3.18792e-01 592 2016 12 1.09510e+00 4.10344e-01 331 2017 1 1.05450e+00 3.08129e-01 460 2017 2 1.09986e+00 4.44486e-01 545 2017 3 1.08093e+00 1.68149e-01 579 2017 4 8.72211e-01 1.46860e-01 383 2017 5 9.88947e-01 1.47056e+00 200 2017 6 2.66695e+00 6.06998e+00 85 2017 7 8.12531e-01 4.90479e-01 80 2017 8 1.52537e+00 1.49077e+00 214 2017 9 4.18763e+00 2.62179e+01 356 2017 10 2.25711e+01 1.00085e+02 104 2017 11 1.56470e+00 1.15872e+00 742 2017 12 9.57726e-01 3.15240e-01 421 2018 1 1.18452e+00 3.62173e-01 282 2018 2 1.16264e+00 2.30368e-01 470 2018 3 1.16559e+00 3.05049e-01 496 2018 4 9.39252e-01 1.43345e-01 254 2018 5 1.36176e+00 9.83005e-01 287 2018 6 9.89658e-01 4.35978e-01 206 2018 7 nan nan 0 2018 8 3.37534e+03 6.07430e+03 34 2018 9 5.06846e+01 5.55499e+02 405 2018 10 1.40959e+00 4.96851e-01 439 2018 11 1.21064e+00 7.89087e-02 64 2018 12 1.52062e+00 3.06668e-01 356 2019 1 9.10174e+00 4.14612e+01 156 2019 2 3.40983e+00 7.16286e+00 129 2019 3 2.14999e+00 3.50119e+00 464 2019 4 1.57515e+00 4.47530e-01 304 2019 5 1.30699e+00 5.11374e-01 294 2019 6 nan nan 0 2019 7 1.01205e+00 5.27513e-02 30 2019 8 3.47253e+00 6.98872e+00 121 2019 9 1.53913e+00 1.22823e+00 151 2019 10 1.31423e+00 1.44405e-01 354 2019 11 1.15082e+00 4.63358e-01 528 2019 12 1.30583e+00 2.99520e-01 130 2020 1 1.37191e+00 2.51582e-01 304 2020 2 1.42878e+00 4.41813e-01 306 2020 3 1.41049e+00 3.65532e-01 564 2020 4 1.60785e+00 4.37068e+00 183 2020 5 6.74082e+00 9.20020e+01 420 2020 6 1.85806e+00 4.99258e+00 290 2020 7 1.31833e+00 4.64315e-01 79 2020 8 1.49499e+00 7.23811e-01 141 2020 9 1.62880e+00 2.04923e-01 144 2020 10 1.67762e+00 9.18128e-01 382 2020 11 1.48524e+00 4.00365e-01 332 2020 12 1.34747e+00 4.01124e-01 426 2021 1 1.56211e+00 3.80001e-01 161 2021 2 1.64713e+00 4.39436e-01 301 2021 3 1.52728e+00 4.38112e-01 340 2021 4 4.74992e+00 2.35238e+01 260 2021 5 1.96515e+00 6.09045e-01 257 2021 6 1.61317e+00 4.39957e-01 37 2021 7 2.83271e+00 3.22421e+00 55 2021 8 1.52872e+01 2.15026e+01 16 2021 9 1.29147e+01 6.29829e+01 226 2021 10 7.22355e+00 3.21029e+01 240 2021 11 1.56487e+00 3.84233e-01 553 2021 12 1.53703e+00 3.75464e-01 499 2022 1 1.57764e+00 2.70704e-01 372 2022 2 1.39595e+00 3.31421e-01 540 2022 3 1.42748e+00 4.07634e-01 432 2022 4 1.00643e+00 1.68494e-01 35 2022 5 1.69693e+01 1.34296e+02 289 2022 6 1.31374e+00 1.75371e-01 202 2022 7 1.28009e+00 3.63244e-01 124 2022 8 1.66582e+00 2.87960e+00 162 2022 9 2.44134e+01 3.45088e+02 248 2022 10 1.02925e+00 8.91851e-01 955 2022 11 1.32566e+00 6.50018e-01 296 2022 12 1.27231e+00 9.89721e-01 653 2023 1 1.12310e+00 2.21485e-01 754 2023 2 1.27459e+00 4.25443e-01 526 2023 3 1.72321e+00 8.40773e-01 526 2023 4 1.27193e+00 3.30220e-01 400 2023 5 1.07017e+00 6.83717e-01 244 2023 6 5.72849e-01 1.85851e-01 75 2023 7 1.00060e+00 4.75117e-01 345 2023 8 1.19135e+00 7.45863e-01 209 2023 9 1.49063e+00 1.12526e+00 373 2023 10 1.18211e+00 7.97952e-01 360 2023 11 1.56775e+00 2.54459e+00 532 2023 12 1.36995e+00 3.82324e-01 179 2024 1 3.39009e+00 6.80455e+00 283 2024 2 2.60417e+00 8.17812e+00 703 2024 3 1.50746e+00 3.02005e-01 318 2024 4 nan nan 0