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 4.41521e+00 1.49566e+00 87 2002 8 5.21214e+00 2.26170e+00 80 2002 9 5.42381e+00 2.48461e+00 91 2002 10 5.33043e+00 3.26213e+00 401 2002 11 1.19090e+01 8.41130e+00 244 2002 12 1.00964e+01 7.01891e+00 268 2003 1 1.28856e+01 8.26852e+00 501 2003 2 1.02586e+01 4.89594e+00 412 2003 3 2.26540e+01 1.18785e+01 8 2003 4 nan nan 0 2003 5 nan nan 0 2003 6 7.87629e+00 2.96214e+00 30 2003 7 nan nan 0 2003 8 2.12370e+01 1.16018e+01 4 2003 9 7.24313e+00 6.09329e+00 73 2003 10 1.06303e+01 6.79093e+00 245 2003 11 6.91922e+00 4.89302e+00 460 2003 12 7.42584e+00 4.02497e+00 582 2004 1 6.40061e+00 4.02485e+00 496 2004 2 1.14634e+01 6.70181e+00 196 2004 3 1.34457e+01 1.13470e+01 253 2004 4 7.05474e+00 3.68445e+00 179 2004 5 6.17012e+00 3.69068e+00 109 2004 6 4.62257e+00 2.68822e+00 160 2004 7 5.35508e+00 3.50629e+00 89 2004 8 4.39942e+00 1.96926e+00 78 2004 9 nan nan 0 2004 10 3.13029e+01 1.91797e+01 4 2004 11 2.22212e+01 1.06406e+01 23 2004 12 1.66616e+01 8.35810e+00 175 2005 1 1.51277e+01 7.92075e+00 275 2005 2 8.87344e+00 5.06276e+00 225 2005 3 9.95161e+00 5.29745e+00 187 2005 4 3.32490e+01 5.83814e+00 9 2005 5 nan nan 0 2005 6 1.63921e+01 4.87758e+00 18 2005 7 nan nan 0 2005 8 1.69340e+01 0.00000e+00 1 2005 9 8.31953e+00 5.08657e+00 124 2005 10 7.12212e+00 3.10074e+00 243 2005 11 5.28925e+00 2.32294e+00 502 2005 12 6.45396e+00 4.03597e+00 373 2006 1 1.46794e+01 8.06734e+00 300 2006 2 1.29921e+01 7.07330e+00 293 2006 3 1.83174e+01 1.01323e+01 463 2006 4 8.05144e+00 3.34136e+00 174 2006 5 6.77218e+00 3.73354e+00 62 2006 6 3.96477e+00 1.51737e+00 77 2006 7 7.53431e+00 4.26792e+00 55 2006 8 4.00035e+00 1.10800e+00 22 2006 9 7.08610e+00 4.31882e+00 226 2006 10 5.43917e+00 4.34120e+00 318 2006 11 4.67741e+00 2.60503e+00 480 2006 12 2.68735e+00 1.41019e+00 262 2007 1 4.51961e+00 2.68258e+00 332 2007 2 4.73837e+00 1.92468e+00 415 2007 3 4.08429e+00 2.24530e+00 634 2007 4 3.82813e+00 2.00097e+00 211 2007 5 7.07047e+00 5.52889e+00 6 2007 6 4.50121e+00 1.32566e+00 97 2007 7 5.97436e+00 4.16258e+00 135 2007 8 3.84889e+00 2.45734e+00 112 2007 9 2.64054e+00 2.91338e+00 71 2007 10 2.12080e+00 6.55213e-01 162 2007 11 3.34261e+00 2.01871e+00 600 2007 12 2.88218e+00 1.68594e+00 252 2008 1 4.13606e+00 2.45782e+00 367 2008 2 3.48023e+00 1.70287e+00 534 2008 3 4.93471e+00 2.90079e+00 383 2008 4 1.00960e+01 5.89292e+00 260 2008 5 7.08312e+00 2.37997e+00 133 2008 6 5.72395e+00 2.99274e+00 80 2008 7 7.36228e+00 4.56299e+00 154 2008 8 1.09047e+01 6.34398e+00 40 2008 9 1.04787e+01 1.14295e+01 42 2008 10 6.69462e+00 4.29659e+00 394 2008 11 5.04575e+00 2.27814e+00 480 2008 12 7.31704e+00 5.58920e+00 649 2009 1 6.91818e+00 5.38557e+00 434 2009 2 4.64777e+00 1.94265e+00 686 2009 3 4.04696e+00 1.84760e+00 380 2009 4 1.04811e+01 3.64569e+00 133 2009 5 9.27358e+00 7.36575e+00 125 2009 6 6.57719e+00 2.01736e+00 42 2009 7 7.12746e+00 2.04349e+00 47 2009 8 1.05874e+01 7.37789e+00 77 2009 9 8.11947e+00 5.62813e+00 183 2009 10 7.68592e+00 4.23740e+00 298 2009 11 3.90133e+00 2.78951e+00 405 2009 12 5.51582e+00 3.72331e+00 194 2010 1 7.29970e+00 3.92497e+00 609 2010 2 1.42631e+01 7.58130e+00 63 2010 3 2.43158e+01 9.51255e+00 169 2010 4 1.47986e+01 9.41047e+00 166 2010 5 9.81340e+00 1.14439e+00 52 2010 6 nan nan 0 2010 7 1.66405e+01 8.66650e+00 58 2010 8 1.30914e+01 7.64757e+00 21 2010 9 1.24989e+01 1.02682e+01 131 2010 10 6.75268e+00 5.38583e+00 663 2010 11 4.82750e+00 3.63466e+00 640 2010 12 6.00920e+00 4.03543e+00 461 2011 1 6.11564e+00 3.38755e+00 428 2011 2 6.91634e+00 3.89225e+00 377 2011 3 9.21003e+00 5.52259e+00 624 2011 4 7.18991e+00 4.04291e+00 335 2011 5 4.92164e+00 1.84078e+00 191 2011 6 3.57533e+00 0.00000e+00 2 2011 7 9.03902e+00 5.59605e+00 58 2011 8 3.82024e+00 1.85662e+00 84 2011 9 4.07347e+00 1.79675e+00 357 2011 10 4.44093e+00 3.72049e+00 475 2011 11 3.71474e+00 1.85965e+00 516 2011 12 3.37544e+00 2.00014e+00 468 2012 1 4.06130e+00 2.43592e+00 609 2012 2 3.36930e+00 1.42215e+00 173 2012 3 5.01785e+00 5.80344e+00 361 2012 4 4.44593e+00 2.10847e+00 159 2012 5 2.96991e+00 9.26506e-01 178 2012 6 3.95049e+00 1.43142e-01 2 2012 7 nan nan 0 2012 8 nan nan 0 2012 9 nan nan 0 2012 10 3.01082e+01 1.44533e+01 14 2012 11 1.20794e+01 7.02810e+00 461 2012 12 7.60976e+00 3.67140e+00 163 2013 1 6.33683e+00 4.39069e+00 356 2013 2 7.97524e+00 3.16104e+00 195 2013 3 9.06771e+00 3.84235e+00 365 2013 4 1.21388e+01 5.70374e+00 197 2013 5 8.35651e+00 2.63472e+00 87 2013 6 9.93876e+00 4.94371e+00 106 2013 7 nan nan 0 2013 8 8.84272e-01 2.16544e+00 7 2013 9 9.50102e-01 3.07809e+00 15 2013 10 1.38237e+01 7.16128e+00 189 2013 11 1.15470e+01 8.96999e+00 236 2013 12 7.82642e+00 5.86924e+00 581 2014 1 1.05790e+01 6.57460e+00 240 2014 2 1.13454e+01 7.05941e+00 255 2014 3 2.24407e+01 1.22036e+01 128 2014 4 3.46129e+01 5.18671e+00 10 2014 5 nan nan 0 2014 6 nan nan 0 2014 7 2.12901e+01 9.06164e+00 227 2014 8 1.36702e+01 8.26542e+00 99 2014 9 7.98664e+00 6.20827e+00 156 2014 10 1.48233e+01 8.69708e+00 693 2014 11 7.38821e+00 4.21174e+00 641 2014 12 5.02579e+00 2.92261e+00 349 2015 1 6.55085e+00 4.28526e+00 311 2015 2 1.09354e+01 6.41665e+00 406 2015 3 1.55550e+01 8.45442e+00 319 2015 4 nan nan 0 2015 5 8.83609e+00 3.89258e+00 103 2015 6 9.83706e+00 6.22217e+00 107 2015 7 9.91434e+00 4.84306e+00 26 2015 8 4.62800e-05 6.30798e-05 9 2015 9 1.78302e+01 8.10046e+00 8 2015 10 8.90737e+00 4.66226e+00 269 2015 11 8.31717e+00 3.96983e+00 271 2015 12 5.46985e+00 3.60799e+00 379 2016 1 6.34532e+00 2.85097e+00 448 2016 2 1.01010e+01 4.79074e+00 502 2016 3 9.88627e+00 5.82947e+00 476 2016 4 1.23276e+01 8.98123e+00 234 2016 5 1.21261e+01 5.28417e+00 70 2016 6 8.18375e+00 4.82319e+00 141 2016 7 9.25075e+00 5.42225e+00 137 2016 8 1.99575e+01 1.13029e+01 31 2016 9 2.35069e+01 1.12080e+01 13 2016 10 1.31278e+01 1.19537e+01 225 2016 11 5.91537e+00 3.77465e+00 454 2016 12 5.14472e+00 2.49891e+00 317 2017 1 7.46831e+00 5.61847e+00 363 2017 2 6.51890e+00 4.26153e+00 489 2017 3 5.03718e+00 2.24896e+00 535 2017 4 6.74080e+00 4.91019e+00 122 2017 5 8.11092e+00 6.12717e+00 80 2017 6 1.29877e+01 5.15193e+00 7 2017 7 4.63659e+00 1.03665e+01 12 2017 8 9.45343e+00 6.74250e+00 93 2017 9 1.48851e+01 7.06468e+00 136 2017 10 1.97360e+01 1.22062e+01 161 2017 11 6.26286e+00 4.01224e+00 528 2017 12 5.37698e+00 3.81846e+00 404 2018 1 5.63907e+00 2.49157e+00 446 2018 2 5.03259e+00 2.25633e+00 376 2018 3 9.00001e+00 6.33250e+00 501 2018 4 1.44178e+01 1.15099e+01 101 2018 5 1.06309e+01 7.65526e+00 311 2018 6 1.66311e+01 1.23735e+01 45 2018 7 6.85421e+00 2.33302e+00 51 2018 8 2.14515e+01 8.07164e+00 40 2018 9 1.96605e+01 1.37124e+01 129 2018 10 1.70496e+01 9.71075e+00 312 2018 11 1.16327e+01 5.99133e+00 80 2018 12 1.18962e+01 8.25615e+00 161 2019 1 2.13406e+01 9.96098e+00 35 2019 2 1.97538e+01 1.06143e+01 189 2019 3 1.43376e+01 9.26044e+00 195 2019 4 9.53776e+00 2.94533e+00 186 2019 5 6.94790e+00 2.75425e+00 60 2019 6 nan nan 0 2019 7 1.17551e+01 0.00000e+00 1 2019 8 2.37686e+01 1.42576e+01 28 2019 9 1.52728e+01 7.72225e+00 86 2019 10 8.83274e+00 6.39232e+00 324 2019 11 5.32709e+00 2.75931e+00 425 2019 12 5.11537e+00 3.34291e+00 227 2020 1 6.38138e+00 3.87422e+00 261 2020 2 7.19484e+00 5.94903e+00 310 2020 3 6.18539e+00 3.11262e+00 420 2020 4 7.35264e+00 3.69825e+00 205 2020 5 6.07055e+00 3.50669e+00 161 2020 6 1.25150e+01 3.60794e+00 62 2020 7 nan nan 0 2020 8 1.15245e+01 3.80335e+00 48 2020 9 2.37490e+01 1.12334e+01 16 2020 10 nan nan 0 2020 11 1.10549e+01 8.77503e+00 177 2020 12 7.35401e+00 5.49237e+00 275 2021 1 1.07457e+01 6.66260e+00 223 2021 2 1.49562e+01 1.00564e+01 216 2021 3 1.58713e+01 9.99535e+00 65 2021 4 1.67487e+01 8.63739e+00 111 2021 5 1.03656e+01 7.58718e+00 215 2021 6 5.11220e+00 1.64802e+00 83 2021 7 2.75419e-01 0.00000e+00 1 2021 8 nan nan 0 2021 9 2.18384e+01 7.44494e+00 62 2021 10 1.33552e+01 7.92288e+00 136 2021 11 1.11879e+01 7.74390e+00 154 2021 12 7.67693e+00 3.22890e+00 315 2022 1 8.30351e+00 3.77500e+00 485 2022 2 5.71405e+00 3.21793e+00 512 2022 3 5.51429e+00 4.19234e+00 304 2022 4 1.71676e+01 7.14790e+00 26 2022 5 1.51802e+01 6.01759e+00 150 2022 6 8.82881e+00 4.04207e+00 154 2022 7 5.00397e+00 1.50471e+00 50 2022 8 9.36888e+00 6.08809e+00 170 2022 9 5.17831e+00 2.67736e+00 102 2022 10 5.32508e+00 3.57032e+00 805 2022 11 7.71272e+00 7.43382e+00 283 2022 12 5.66561e+00 6.29724e+00 597 2023 1 4.82900e+00 3.88636e+00 770 2023 2 5.03245e+00 2.89019e+00 387 2023 3 8.99758e+00 8.13655e+00 380 2023 4 7.65885e+00 6.68849e+00 295 2023 5 1.41526e+01 1.00910e+01 99 2023 6 3.10784e+00 9.14289e-01 64 2023 7 nan nan 0 2023 8 7.90102e+00 6.32605e+00 48 2023 9 1.79004e+01 9.67754e+00 185 2023 10 1.74253e+01 9.71612e+00 236 2023 11 7.20516e+00 6.50384e+00 503 2023 12 1.83046e+01 8.73634e+00 46 2024 1 1.37215e+01 6.64525e+00 50 2024 2 2.84453e+01 1.04536e+01 224 2024 3 nan nan 0 2024 4 nan nan 0