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 2.61195e+00 2.43040e-01 19 2002 8 2.44904e+00 1.83478e+00 48 2002 9 5.58598e+00 5.73023e-01 44 2002 10 5.21945e+00 7.14478e-01 26 2002 11 nan nan 0 2002 12 4.79774e+00 3.35721e-01 41 2003 1 7.31042e+00 1.96408e+00 126 2003 2 4.25846e+00 9.37745e-01 69 2003 3 1.10869e+01 1.19526e+00 35 2003 4 1.06778e+01 1.23723e-01 12 2003 5 nan nan 0 2003 6 6.51291e+00 4.42916e-02 6 2003 7 1.16914e+01 8.78442e-01 27 2003 8 9.35134e+00 2.96677e-01 10 2003 9 7.52755e+00 5.37721e-01 50 2003 10 3.29027e+00 2.08667e+00 71 2003 11 4.97625e+00 7.99462e-01 116 2003 12 4.90085e+00 8.55387e-01 107 2004 1 3.08465e+00 4.44427e-01 77 2004 2 4.74533e+00 2.08572e+00 36 2004 3 5.69975e+00 1.78900e+00 87 2004 4 nan nan 0 2004 5 3.16599e+00 1.12705e-01 16 2004 6 4.97932e+00 4.84363e-02 16 2004 7 7.09959e+00 3.45828e-01 15 2004 8 4.96367e+00 1.41718e-01 16 2004 9 6.74018e+00 2.73273e+00 45 2004 10 4.74039e+00 1.16924e+00 80 2004 11 5.24203e+00 7.52966e-02 16 2004 12 6.74207e+00 8.36874e-01 77 2005 1 6.64680e+00 1.47191e+00 76 2005 2 5.06172e+00 9.25477e-01 77 2005 3 3.51709e+00 1.09728e+00 81 2005 4 1.26139e+01 4.31630e-02 30 2005 5 7.97402e+00 8.23178e-01 20 2005 6 5.19136e+00 9.49757e-02 18 2005 7 5.97595e+00 1.20099e+00 39 2005 8 nan nan 0 2005 9 nan nan 0 2005 10 3.03609e+00 9.43282e-01 102 2005 11 2.36140e+00 9.24371e-01 39 2005 12 4.62431e+00 9.67501e-01 76 2006 1 4.58471e+00 8.32227e-01 73 2006 2 4.41975e+00 5.98224e-01 144 2006 3 4.09480e+00 7.29119e-01 116 2006 4 2.34746e+00 2.55420e-01 18 2006 5 3.22897e+00 1.31311e-01 23 2006 6 2.41346e+00 1.39536e-01 21 2006 7 nan nan 0 2006 8 4.24760e+00 5.59948e-02 13 2006 9 3.80659e+00 5.27085e-01 48 2006 10 3.67839e+00 7.82414e-01 93 2006 11 3.53513e+00 1.03078e+00 132 2006 12 1.32511e+00 1.32043e+00 117 2007 1 3.67391e+00 1.38288e+00 38 2007 2 5.31394e+00 6.93911e-01 55 2007 3 3.85686e+00 8.95460e-01 82 2007 4 5.99629e+00 1.63675e+00 27 2007 5 1.71421e+00 3.47845e+00 32 2007 6 1.65778e+00 1.08892e-01 16 2007 7 3.04589e+00 1.58647e-01 37 2007 8 2.89819e+00 8.62300e-02 16 2007 9 -6.95114e-01 5.14454e-01 22 2007 10 1.80283e+00 4.47558e-01 52 2007 11 3.44581e+00 9.00672e-01 79 2007 12 4.81837e+00 7.90752e-01 50 2008 1 7.99217e+00 2.00728e+00 55 2008 2 8.00894e+00 2.01741e+00 87 2008 3 8.29280e+00 5.00785e-01 37 2008 4 9.59820e+00 1.20569e+00 19 2008 5 nan nan 0 2008 6 nan nan 0 2008 7 nan nan 0 2008 8 4.82410e+00 0.00000e+00 3 2008 9 nan nan 0 2008 10 3.29940e+00 1.06422e+00 77 2008 11 2.29956e+00 6.47426e-01 81 2008 12 6.33438e+00 2.64428e+00 64 2009 1 6.61689e+00 6.59944e-01 77 2009 2 4.33925e+00 1.08293e+00 54 2009 3 3.91328e+00 3.64017e-01 90 2009 4 1.25473e+01 2.06859e+00 26 2009 5 9.08872e+00 2.24102e-01 16 2009 6 nan nan 0 2009 7 nan nan 0 2009 8 5.92405e+00 1.81853e-01 17 2009 9 4.84838e+00 1.10482e+00 22 2009 10 6.46057e+00 7.01254e-01 119 2009 11 6.39429e+00 2.08858e+00 71 2009 12 nan nan 0 2010 1 8.79110e+00 1.86244e+00 54 2010 2 1.03766e+01 1.51595e-02 12 2010 3 8.68382e+00 8.31667e-01 56 2010 4 6.13363e+00 5.62801e-01 44 2010 5 nan nan 0 2010 6 2.15819e+00 3.09156e+00 57 2010 7 3.20122e+00 1.09119e+00 43 2010 8 nan nan 0 2010 9 3.03841e+00 6.81755e-01 42 2010 10 3.61388e+00 4.62477e-01 104 2010 11 2.48883e+00 4.48035e-01 91 2010 12 2.34612e+00 5.47397e-01 143 2011 1 2.73568e+00 8.07009e-01 115 2011 2 5.02036e+00 1.43189e+00 100 2011 3 4.79515e+00 1.30998e+00 113 2011 4 3.66294e+00 2.24375e-01 18 2011 5 1.61560e+00 7.24463e-01 22 2011 6 1.94163e+00 1.78644e+00 34 2011 7 3.26091e+00 1.26132e+00 45 2011 8 3.57207e+00 4.38654e-01 42 2011 9 3.86737e+00 1.29939e+00 34 2011 10 2.21099e+00 3.88207e-01 65 2011 11 1.27552e+00 1.36479e+00 118 2011 12 1.82722e+00 1.15587e+00 78 2012 1 2.81088e+00 4.68745e-01 100 2012 2 2.57320e+00 1.72574e-01 16 2012 3 1.10039e+01 4.65481e-01 19 2012 4 1.40180e+00 1.67024e+00 23 2012 5 -1.78142e-01 2.56001e+00 28 2012 6 2.95711e+00 1.30390e-01 15 2012 7 nan nan 0 2012 8 1.47073e+01 0.00000e+00 1 2012 9 nan nan 0 2012 10 6.88193e+00 6.52357e-01 35 2012 11 3.40555e+00 9.05673e-01 100 2012 12 3.57154e+00 7.46905e-01 100 2013 1 3.79635e+00 3.88550e-01 82 2013 2 3.23927e+00 1.59298e-01 29 2013 3 9.56913e+00 7.82033e-01 54 2013 4 nan nan 0 2013 5 2.36521e+00 2.18778e+00 4 2013 6 -7.92968e-01 2.38573e+00 32 2013 7 nan nan 0 2013 8 1.25660e+01 2.77223e-01 15 2013 9 1.23825e+01 4.15910e+00 45 2013 10 7.75025e+00 1.30459e+00 72 2013 11 4.65183e+00 8.27678e-01 78 2013 12 3.94395e+00 4.64633e-01 54 2014 1 7.24916e+00 3.87901e-01 70 2014 2 5.62768e+00 1.65003e+00 64 2014 3 8.20268e+00 1.13579e+00 55 2014 4 9.59642e+00 1.96109e+00 38 2014 5 nan nan 0 2014 6 7.70106e+00 8.10447e-01 29 2014 7 nan nan 0 2014 8 -1.92622e+00 3.21724e-01 11 2014 9 2.39933e+00 2.30879e+00 48 2014 10 4.91443e+00 2.42829e+00 167 2014 11 3.70199e+00 6.82315e-01 131 2014 12 3.13645e+00 7.25397e-01 94 2015 1 6.05990e+00 1.31951e+00 129 2015 2 5.30427e+00 6.55684e-01 108 2015 3 5.13527e+00 1.04974e+00 66 2015 4 8.37919e+00 2.54632e-01 8 2015 5 6.46954e+00 2.18884e+00 32 2015 6 5.72445e+00 1.60603e+00 49 2015 7 4.87459e+00 1.17192e-01 19 2015 8 1.24909e+00 6.93798e-01 8 2015 9 7.98485e+00 5.65698e+00 30 2015 10 5.75061e+00 2.23109e+00 60 2015 11 1.01119e+01 1.69847e+00 57 2015 12 7.51074e+00 1.78053e-01 14 2016 1 1.39536e+01 9.03425e-02 10 2016 2 8.58364e+00 1.12570e+00 99 2016 3 7.57384e+00 2.68989e+00 48 2016 4 1.04169e+01 2.56304e+00 7 2016 5 nan nan 0 2016 6 2.19320e+00 1.57098e+00 30 2016 7 3.84755e+00 4.57208e-01 18 2016 8 7.45145e+00 1.31161e+00 30 2016 9 4.05908e+00 2.77568e-01 43 2016 10 2.42316e+00 6.18687e-01 33 2016 11 2.81073e+00 8.37928e-01 106 2016 12 5.89391e+00 2.66659e+00 129 2017 1 1.04223e+01 7.45981e-01 51 2017 2 7.83231e+00 1.41090e+00 146 2017 3 6.45200e+00 2.35999e+00 58 2017 4 4.60598e+00 5.88081e-01 55 2017 5 3.09946e+00 6.53114e-01 35 2017 6 1.98420e+00 2.82496e+00 48 2017 7 7.64140e+00 5.15735e-01 64 2017 8 6.40550e+00 6.21777e-02 16 2017 9 4.30418e+00 1.80095e-01 32 2017 10 4.89449e+00 1.46529e+00 90 2017 11 4.15738e+00 1.11426e+00 117 2017 12 2.91409e+00 3.34083e-01 39 2018 1 1.76231e+00 5.99049e-01 115 2018 2 2.26842e+00 5.87374e-02 16 2018 3 6.32346e+00 1.04493e+00 32 2018 4 4.37935e+00 2.81442e-01 39 2018 5 nan nan 0 2018 6 7.06455e+00 2.24300e+00 24 2018 7 2.77800e+00 1.86391e-01 8 2018 8 7.36150e+00 1.90890e-01 16 2018 9 6.99718e+00 1.37674e+00 42 2018 10 7.11912e+00 2.31281e+00 64 2018 11 nan nan 0 2018 12 9.56564e+00 4.67141e-01 15 2019 1 9.86930e+00 1.35490e+00 54 2019 2 5.43569e+00 3.03116e+00 18 2019 3 6.11574e+00 1.17202e+00 84 2019 4 4.28936e+00 2.68388e-01 20 2019 5 3.23208e+00 1.81248e+00 34 2019 6 2.28648e+00 0.00000e+00 1 2019 7 nan nan 0 2019 8 nan nan 0 2019 9 3.04986e+00 4.94241e-01 52 2019 10 1.82402e+00 9.15935e-01 53 2019 11 3.17959e+00 2.80629e-01 9 2019 12 1.59784e+00 1.83374e-01 30 2020 1 8.74499e+00 1.17930e-01 16 2020 2 6.11222e+00 2.07657e-01 48 2020 3 9.17731e+00 5.05646e-01 26 2020 4 5.77065e+00 2.81518e-02 16 2020 5 8.54740e+00 2.81909e-01 18 2020 6 2.34669e+00 1.79119e-01 16 2020 7 3.80936e+00 2.75473e-01 32 2020 8 5.93736e+00 9.32707e-02 16 2020 9 1.28262e+01 1.19481e-01 16 2020 10 7.67924e+00 1.35212e+00 70 2020 11 5.15231e+00 2.34565e-01 6 2020 12 4.69744e+00 4.45486e-01 64 2021 1 nan nan 0 2021 2 5.72645e+00 2.77391e-01 32 2021 3 7.33342e+00 1.26906e+00 96 2021 4 6.98232e+00 6.07102e-01 64 2021 5 5.06339e+00 1.26061e-01 12 2021 6 2.61354e+00 0.00000e+00 2 2021 7 9.05311e+00 6.19879e-01 32 2021 8 7.67215e+00 1.42219e-01 11 2021 9 9.85557e+00 2.94147e-01 16 2021 10 8.01362e+00 1.86191e+00 40 2021 11 5.64578e+00 1.04034e+00 43 2021 12 5.28246e+00 3.64562e-01 32 2022 1 5.29501e+00 1.19291e+00 67 2022 2 4.18792e+00 1.12066e+00 94 2022 3 3.27327e+00 5.25806e-01 110 2022 4 4.52032e+00 9.87704e-02 6 2022 5 4.23239e+00 5.20863e-01 24 2022 6 4.27860e+00 1.43830e+00 38 2022 7 3.51487e+00 1.37250e+00 30 2022 8 3.82644e+00 7.13977e-01 52 2022 9 4.43158e+00 1.41241e-01 16 2022 10 2.97059e+00 5.76451e-01 94 2022 11 2.22381e+00 7.09887e-01 83 2022 12 2.87786e+00 3.21505e-01 98 2023 1 4.24789e+00 1.06592e+00 150 2023 2 4.96635e+00 1.59809e+00 124 2023 3 5.39489e+00 4.24146e-01 28 2023 4 5.34723e+00 2.11428e+00 29 2023 5 2.96943e+00 1.82249e-01 16 2023 6 3.82285e+00 1.90403e-01 12 2023 7 8.80729e+00 8.23717e-01 32 2023 8 nan nan 0 2023 9 -5.97795e-01 2.98830e-01 6 2023 10 2.35282e+00 1.30291e+00 128 2023 11 2.43658e+00 4.14290e-01 91 2023 12 3.28239e+00 7.31672e-01 34 2024 1 4.96213e+00 3.24623e-01 32 2024 2 7.10822e+00 1.59773e+00 48 2024 3 6.93155e+00 1.14934e+00 27 2024 4 nan nan 0