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 2.14430e+01 2.38028e+00 16 2002 8 1.11631e+00 4.54162e-01 16 2002 9 4.40697e+00 5.61694e+00 39 2002 10 5.84698e-01 4.20920e-01 51 2002 11 1.82541e+00 1.20233e+00 158 2002 12 3.48800e+00 3.19852e+00 128 2003 1 4.06056e+00 4.46119e+00 191 2003 2 9.64526e+00 3.17212e+00 96 2003 3 1.10690e+00 1.35870e+00 34 2003 4 1.61822e+00 2.02609e+00 113 2003 5 3.85562e+00 2.33512e+00 32 2003 6 5.76529e+00 1.87980e+00 52 2003 7 1.84434e+00 1.28513e+00 32 2003 8 nan nan 0 2003 9 5.27326e-01 6.21078e-01 63 2003 10 3.61871e+00 2.49659e+00 147 2003 11 2.30461e+00 1.74751e+00 177 2003 12 4.16939e+00 3.04336e+00 134 2004 1 1.09356e+01 3.45900e+00 90 2004 2 1.68826e+00 1.32754e+00 43 2004 3 3.12540e+00 2.77637e+00 149 2004 4 9.25446e+00 2.73003e+00 84 2004 5 1.87595e+01 3.58499e+00 60 2004 6 1.42787e+01 8.58408e+00 24 2004 7 9.68288e+00 8.88030e-01 18 2004 8 4.26927e+00 3.86816e+00 33 2004 9 2.80159e+00 3.83363e+00 62 2004 10 2.12033e+00 1.97730e+00 85 2004 11 3.19451e+00 5.31364e+00 99 2004 12 2.00521e+00 1.19178e+00 93 2005 1 2.46611e+00 1.93872e+00 95 2005 2 5.91711e+00 4.50673e+00 126 2005 3 3.72971e+00 4.89361e+00 146 2005 4 3.04214e-02 4.18266e-02 54 2005 5 3.65448e+00 3.43701e+00 55 2005 6 8.98052e+00 2.75767e+00 39 2005 7 7.72018e-01 6.43975e-01 26 2005 8 4.84524e-01 4.70069e-01 54 2005 9 1.06193e+01 1.33105e+00 15 2005 10 1.02848e+01 4.97016e+00 168 2005 11 1.15937e+01 4.88547e+00 114 2005 12 7.69715e+00 5.67407e+00 94 2006 1 3.00999e+00 2.83329e+00 76 2006 2 5.20938e+00 3.78433e+00 159 2006 3 5.87604e+00 3.38356e+00 167 2006 4 1.41822e+01 5.87670e+00 100 2006 5 1.01248e+01 3.93549e+00 90 2006 6 9.91909e+00 1.59689e+00 15 2006 7 1.02460e+01 2.19918e+00 47 2006 8 1.57136e+01 9.37792e+00 54 2006 9 7.91113e+00 4.52446e+00 105 2006 10 1.11426e+01 4.49325e+00 161 2006 11 1.13014e+01 5.96056e+00 173 2006 12 2.68927e+00 2.15354e+00 76 2007 1 7.14921e-01 7.79515e-01 76 2007 2 3.15914e+00 3.86473e+00 117 2007 3 1.20139e+01 5.01002e+00 181 2007 4 1.08308e+01 4.83564e+00 133 2007 5 1.94822e+01 1.12548e+01 33 2007 6 2.31553e+01 1.47658e+00 10 2007 7 1.28726e+01 6.86140e+00 62 2007 8 1.53945e+01 5.09916e+00 51 2007 9 2.79722e+00 1.83223e+00 72 2007 10 6.20914e+00 2.08641e+00 90 2007 11 6.53809e+00 3.87945e+00 170 2007 12 5.09369e+00 4.01789e+00 54 2008 1 8.06558e+00 4.83030e+00 142 2008 2 8.47061e+00 4.85131e+00 180 2008 3 8.17495e-01 9.33967e-01 145 2008 4 2.89069e+00 2.61834e+00 91 2008 5 7.76838e+00 3.39464e+00 132 2008 6 1.34376e+01 9.30578e+00 39 2008 7 1.18384e+01 3.09964e+00 24 2008 8 5.93193e+00 2.82946e-01 4 2008 9 1.98696e+00 1.20157e+00 85 2008 10 3.38011e+00 2.63480e+00 198 2008 11 7.67335e+00 5.12925e+00 163 2008 12 3.15882e+00 2.43914e+00 127 2009 1 4.29860e+00 4.72053e+00 143 2009 2 9.65772e+00 5.29436e+00 160 2009 3 1.38434e+01 7.13743e+00 131 2009 4 5.37724e-01 3.12275e-01 34 2009 5 5.27904e+00 1.69478e+00 72 2009 6 nan nan 0 2009 7 1.23363e+01 2.92095e-01 7 2009 8 1.29440e+01 5.51129e+00 37 2009 9 3.45693e+00 3.74456e+00 40 2009 10 3.72099e+00 8.84765e+00 141 2009 11 4.43705e+00 3.49308e+00 126 2009 12 1.28126e+00 1.62159e+00 33 2010 1 5.44278e-01 7.14526e-01 90 2010 2 4.25318e-01 3.10741e-01 55 2010 3 1.89290e+00 1.32635e+00 106 2010 4 2.54061e+00 2.46923e+00 102 2010 5 5.10138e+00 2.76602e+00 64 2010 6 1.08798e+01 6.08661e+00 67 2010 7 1.21387e+01 1.26664e+00 9 2010 8 nan nan 0 2010 9 4.04065e+00 1.98705e+00 130 2010 10 4.69043e+00 3.51980e+00 205 2010 11 5.61833e+00 5.02048e+00 224 2010 12 6.25292e+00 4.90610e+00 172 2011 1 1.35271e+01 6.10460e+00 130 2011 2 8.27640e+00 5.15780e+00 108 2011 3 1.16094e+01 8.13754e+00 112 2011 4 8.92419e+00 2.82267e+00 118 2011 5 1.36058e+01 6.12544e+00 71 2011 6 6.68566e+00 1.79513e+00 47 2011 7 1.13245e+01 3.62775e+00 60 2011 8 6.75742e+00 1.96309e+00 38 2011 9 1.14546e+01 8.70116e+00 81 2011 10 3.77085e+00 3.77553e+00 232 2011 11 4.00586e+00 5.22485e+00 130 2011 12 1.50497e+01 9.26061e+00 190 2012 1 1.00343e+01 5.88883e+00 166 2012 2 2.01822e+01 1.12398e+01 32 2012 3 9.69875e+00 4.70766e+00 120 2012 4 1.46810e+01 4.55306e+00 78 2012 5 1.24514e+01 5.57694e+00 56 2012 6 7.07573e+00 1.32155e+00 15 2012 7 4.82298e+00 4.62511e+00 30 2012 8 0.00000e+00 0.00000e+00 10 2012 9 1.43110e-01 1.50394e-01 55 2012 10 6.20793e-01 6.51082e-01 178 2012 11 1.23989e+01 6.72138e+00 137 2012 12 1.73009e+01 3.59096e+00 76 2013 1 1.01108e+01 6.93671e+00 96 2013 2 1.12458e+01 7.82433e+00 85 2013 3 4.76826e-01 7.91826e-01 82 2013 4 1.08653e+00 5.64033e-01 31 2013 5 9.97795e+00 5.69654e+00 46 2013 6 3.27188e+00 6.05495e-01 16 2013 7 1.52082e-01 1.70098e-01 5 2013 8 6.33069e-01 4.30941e-01 37 2013 9 1.33923e+00 1.01213e+00 102 2013 10 3.13418e+00 2.05552e+00 130 2013 11 7.23576e+00 5.76527e+00 94 2013 12 6.37960e+00 3.60961e+00 134 2014 1 1.15337e+00 1.86416e+00 93 2014 2 6.27793e+00 7.83472e+00 143 2014 3 5.99544e-01 6.31344e-01 96 2014 4 1.96953e-01 2.28193e-01 50 2014 5 1.10090e+00 1.27125e+00 68 2014 6 5.67797e+00 2.87635e+00 50 2014 7 8.74170e+00 5.53593e-01 28 2014 8 1.91491e+01 7.12357e+00 37 2014 9 1.62321e+01 8.98007e+00 90 2014 10 1.08376e+01 8.17521e+00 238 2014 11 8.04367e+00 4.35100e+00 192 2014 12 9.46697e-01 1.14544e+00 137 2015 1 2.45037e-01 3.13157e-01 118 2015 2 7.39686e-01 8.39063e-01 123 2015 3 7.44399e+00 4.33466e+00 68 2015 4 1.16554e+01 5.19829e+00 40 2015 5 1.26243e+01 5.94265e+00 80 2015 6 6.04690e+00 5.74916e+00 14 2015 7 1.32981e+01 6.93612e+00 26 2015 8 6.62967e+00 2.59786e+00 34 2015 9 3.68655e+00 3.95258e+00 42 2015 10 5.05634e+00 2.99800e+00 144 2015 11 3.99349e+00 3.23597e+00 72 2015 12 5.69869e-01 7.69001e-01 85 2016 1 4.59835e-02 3.39074e-02 60 2016 2 9.11447e-01 8.68838e-01 188 2016 3 2.89517e+00 1.74221e+00 133 2016 4 2.79091e-01 2.18217e-01 44 2016 5 7.07479e+00 3.52915e+00 51 2016 6 1.47979e+01 3.83262e+00 100 2016 7 1.24132e+01 5.49718e+00 127 2016 8 1.24659e+00 9.11056e-01 94 2016 9 3.30359e+00 4.21045e+00 86 2016 10 4.96878e+00 3.37656e+00 234 2016 11 1.02244e+01 8.58397e+00 157 2016 12 1.70848e+01 8.76825e+00 108 2017 1 7.65936e+00 5.01831e+00 127 2017 2 2.59439e+00 2.98911e+00 143 2017 3 6.63879e+00 6.51030e+00 169 2017 4 9.22131e+00 4.65829e+00 76 2017 5 1.22497e+01 7.76359e+00 74 2017 6 2.94160e+00 1.78666e+00 37 2017 7 4.59783e+00 6.58075e+00 35 2017 8 1.81982e+00 1.11607e+00 32 2017 9 3.69485e+00 2.76520e+00 48 2017 10 3.92849e+00 2.45165e+00 193 2017 11 1.15559e+01 6.47362e+00 246 2017 12 2.10870e+01 1.08985e+01 77 2018 1 1.69740e+01 7.43289e+00 175 2018 2 1.64282e+01 9.11291e+00 64 2018 3 8.24340e+00 6.03156e+00 178 2018 4 1.25784e+01 4.73753e+00 119 2018 5 1.19904e+01 5.09131e+00 52 2018 6 4.93498e+00 3.53555e+00 29 2018 7 9.50791e+00 3.80700e+00 15 2018 8 9.06317e-02 4.07422e-02 16 2018 9 1.95994e+00 1.46939e+00 103 2018 10 6.49232e-01 4.73156e-01 143 2018 11 1.38400e+00 8.68028e-01 78 2018 12 5.75285e-01 5.95634e-01 62 2019 1 1.22425e-01 2.19388e-01 100 2019 2 2.79271e-01 2.76702e-01 42 2019 3 1.55554e+00 7.60882e-01 116 2019 4 2.37329e+00 2.32702e+00 78 2019 5 9.18273e+00 3.92110e+00 114 2019 6 4.38713e+00 3.31964e+00 21 2019 7 3.28322e+00 2.56283e+00 74 2019 8 2.08365e+00 3.23148e+00 39 2019 9 3.47344e+00 3.68053e+00 113 2019 10 5.55109e+00 4.06371e+00 131 2019 11 4.67518e+00 2.34559e+00 140 2019 12 1.76023e+00 2.21034e+00 48 2020 1 2.18835e+00 1.58226e+00 84 2020 2 2.24631e+00 3.26486e+00 122 2020 3 6.58082e-01 1.09299e+00 79 2020 4 2.47064e+00 1.13792e+00 64 2020 5 5.13560e+00 4.75806e+00 80 2020 6 8.23015e-01 9.47595e-01 58 2020 7 nan nan 0 2020 8 9.96325e+00 2.49334e+00 30 2020 9 2.76782e+00 2.40856e+00 32 2020 10 4.28690e-01 8.22031e-01 84 2020 11 1.72786e+00 2.72645e+00 162 2020 12 5.60534e+00 4.51047e+00 209 2021 1 2.76760e+00 2.69336e+00 64 2021 2 2.33218e-01 1.80242e-01 80 2021 3 5.64265e-01 7.94024e-01 120 2021 4 3.49689e+00 2.84008e+00 111 2021 5 3.81374e+00 3.60100e+00 129 2021 6 1.95436e+01 4.20930e+00 46 2021 7 2.08048e+00 2.90421e-01 8 2021 8 1.30667e+00 1.63596e+00 58 2021 9 2.70721e-01 2.14466e-01 35 2021 10 4.44504e+00 1.13124e+01 18 2021 11 3.26629e+00 2.09288e+00 240 2021 12 6.65071e+00 3.29789e+00 89 2022 1 3.25891e+00 2.68154e+00 106 2022 2 4.34132e+00 2.21498e+00 118 2022 3 2.59946e+00 3.52522e+00 150 2022 4 9.10208e-01 3.46202e-01 20 2022 5 5.16490e+00 3.01194e+00 33 2022 6 4.74057e+00 1.66218e+00 59 2022 7 8.85965e+00 7.63527e+00 67 2022 8 5.49355e+00 1.37900e+00 36 2022 9 8.39300e-01 9.17982e-01 82 2022 10 3.49506e+00 1.75976e+00 217 2022 11 9.90056e+00 5.73595e+00 137 2022 12 1.61394e+01 9.22845e+00 191 2023 1 1.10949e+01 6.96925e+00 221 2023 2 2.19862e+00 2.30651e+00 138 2023 3 3.62086e+00 2.52967e+00 121 2023 4 7.61946e+00 5.43772e+00 71 2023 5 1.34346e+01 1.52350e+01 60 2023 6 5.72245e+00 2.55590e+00 78 2023 7 3.94595e+00 2.44499e-01 16 2023 8 6.88411e+00 5.56792e+00 60 2023 9 1.35854e+00 1.22555e+00 107 2023 10 2.20100e+00 9.36548e-01 177 2023 11 5.31365e+00 4.28088e+00 112 2023 12 2.24457e-02 3.32826e-02 50 2024 1 5.11452e-02 8.12045e-02 52 2024 2 1.11646e+00 1.23896e+00 140 2024 3 2.93877e+00 2.73950e+00 78 2024 4 nan nan 0