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 4.06446e+00 6.61777e-01 12 2002 8 nan nan 0 2002 9 9.96973e+00 3.00209e-01 16 2002 10 7.37492e+00 1.40106e-01 13 2002 11 1.01414e+01 6.30145e-01 52 2002 12 6.78534e+00 1.19982e+00 58 2003 1 6.18804e+00 1.31519e+00 48 2003 2 4.77426e+00 5.75008e-01 47 2003 3 1.06527e+01 6.94767e-02 7 2003 4 8.73829e+00 8.52280e-01 13 2003 5 nan nan 0 2003 6 nan nan 0 2003 7 nan nan 0 2003 8 nan nan 0 2003 9 8.04618e+00 1.08989e+00 19 2003 10 5.04270e+00 9.54631e-01 114 2003 11 4.84125e+00 1.09345e+00 114 2003 12 6.50341e+00 6.35230e-01 74 2004 1 5.34992e+00 7.06282e-01 13 2004 2 nan nan 0 2004 3 6.43811e+00 9.45860e-01 31 2004 4 4.23465e+00 7.73657e-01 21 2004 5 6.94077e+00 7.57066e-01 31 2004 6 7.28509e+00 1.36943e-01 9 2004 7 1.00474e+01 1.30945e-01 14 2004 8 5.38314e+00 8.29660e-02 8 2004 9 1.34917e+01 0.00000e+00 1 2004 10 8.96964e+00 1.47692e+00 28 2004 11 1.15350e+01 9.99262e-01 52 2004 12 9.80723e+00 1.49107e+00 48 2005 1 7.35704e+00 2.97922e-01 25 2005 2 7.70430e+00 4.56362e-01 37 2005 3 6.23264e+00 7.81234e-01 84 2005 4 1.26201e+01 6.08536e-02 4 2005 5 1.24918e+01 2.93173e+00 7 2005 6 7.93597e+00 1.25033e+00 19 2005 7 9.31578e+00 2.81024e+00 22 2005 8 nan nan 0 2005 9 9.09619e+00 5.29641e-01 14 2005 10 5.09866e+00 7.99855e-01 83 2005 11 5.06708e+00 7.46478e-01 47 2005 12 5.84201e+00 5.86001e-01 48 2006 1 6.93635e+00 1.34193e+00 46 2006 2 6.69815e+00 5.47595e-01 58 2006 3 6.40202e+00 2.04210e+00 33 2006 4 5.19285e+00 7.48955e-01 59 2006 5 6.09400e+00 1.04007e+00 39 2006 6 4.39081e+00 5.98868e-01 25 2006 7 5.66993e+00 3.67506e-01 32 2006 8 nan nan 0 2006 9 5.93968e+00 1.53910e-01 28 2006 10 5.00786e+00 4.40524e-01 97 2006 11 6.57906e+00 1.42117e+00 72 2006 12 4.94725e+00 1.22630e+00 79 2007 1 6.52402e+00 1.51618e+00 48 2007 2 5.55986e+00 6.74873e-01 48 2007 3 5.34717e+00 8.21480e-01 54 2007 4 8.73848e+00 1.16449e+00 30 2007 5 5.86158e+00 5.54464e-01 20 2007 6 nan nan 0 2007 7 nan nan 0 2007 8 6.08904e+00 1.08388e-01 12 2007 9 5.27610e+00 7.80936e-01 16 2007 10 6.81153e+00 1.57926e+00 50 2007 11 4.74509e+00 1.10394e+00 67 2007 12 7.09688e+00 7.93799e-01 41 2008 1 7.59435e+00 1.48928e+00 27 2008 2 1.00404e+01 2.09499e-01 7 2008 3 1.00572e+01 1.21925e+00 21 2008 4 9.05937e+00 5.37268e-01 25 2008 5 5.76181e+00 1.83201e-02 3 2008 6 4.81622e+00 2.44944e-02 4 2008 7 6.54472e+00 4.77030e-01 22 2008 8 7.42501e+00 1.28713e+00 20 2008 9 8.16379e+00 2.15010e+00 31 2008 10 4.83446e+00 4.98263e-01 85 2008 11 3.83295e+00 7.96229e-01 84 2008 12 8.81246e+00 1.46173e+00 32 2009 1 7.99611e+00 1.24567e+00 41 2009 2 5.87110e+00 2.63023e-01 33 2009 3 4.87016e+00 7.03939e-01 32 2009 4 nan nan 0 2009 5 nan nan 0 2009 6 nan nan 0 2009 7 nan nan 0 2009 8 nan nan 0 2009 9 1.04851e+01 1.89644e-01 16 2009 10 9.46501e+00 4.26755e-01 25 2009 11 8.84759e+00 2.32309e+00 47 2009 12 9.07229e+00 4.06530e-02 8 2010 1 8.91131e+00 1.09980e+00 41 2010 2 9.26491e+00 1.29634e+00 38 2010 3 8.89335e+00 1.33973e-01 33 2010 4 6.73724e+00 1.22663e+00 38 2010 5 1.03352e+01 1.31123e-01 14 2010 6 6.80372e+00 2.76159e-01 22 2010 7 6.43532e+00 4.40104e-01 26 2010 8 nan nan 0 2010 9 5.59017e+00 6.51744e-01 47 2010 10 4.55963e+00 4.89412e-01 106 2010 11 5.04546e+00 6.74859e-01 83 2010 12 5.38948e+00 1.50429e+00 122 2011 1 5.24932e+00 7.43358e-01 91 2011 2 7.92859e+00 8.47589e-01 21 2011 3 9.03789e+00 2.47492e-01 15 2011 4 6.43116e+00 2.74235e-01 13 2011 5 2.45463e+00 4.20739e-01 24 2011 6 6.05380e+00 9.21424e-02 3 2011 7 7.70568e+00 6.67493e-02 2 2011 8 5.88429e+00 5.16943e-02 16 2011 9 5.10866e+00 2.11991e-01 15 2011 10 3.95570e+00 9.63289e-01 61 2011 11 4.61034e+00 6.80976e-01 74 2011 12 6.32397e+00 1.37273e+00 41 2012 1 4.98203e+00 8.35163e-01 49 2012 2 7.54403e+00 5.75070e-02 15 2012 3 8.26186e+00 1.70479e+00 36 2012 4 7.01220e+00 1.36807e+00 25 2012 5 4.54496e+00 1.59183e-01 16 2012 6 nan nan 0 2012 7 5.86335e+00 1.89143e-01 14 2012 8 nan nan 0 2012 9 7.64524e+00 1.92241e+00 11 2012 10 6.49867e+00 5.37377e-01 37 2012 11 4.41378e+00 5.97404e-01 95 2012 12 3.75964e+00 1.24027e+00 56 2013 1 6.21815e+00 8.94793e-01 47 2013 2 6.95037e+00 2.16304e+00 39 2013 3 8.39650e+00 1.29437e+00 62 2013 4 6.64583e+00 2.66792e-02 15 2013 5 8.49089e+00 1.50637e-01 16 2013 6 nan nan 0 2013 7 nan nan 0 2013 8 1.10821e+01 8.59047e-01 38 2013 9 8.09472e+00 1.07198e-01 12 2013 10 6.10531e+00 1.23169e+00 70 2013 11 4.86060e+00 1.68787e+00 56 2013 12 4.65355e+00 8.31195e-01 50 2014 1 8.17627e+00 1.16692e+00 35 2014 2 5.85588e+00 5.71612e-01 37 2014 3 9.55525e+00 1.26699e+00 34 2014 4 nan nan 0 2014 5 nan nan 0 2014 6 nan nan 0 2014 7 5.95057e+00 7.29374e-01 10 2014 8 5.94961e+00 1.14992e-01 14 2014 9 5.01605e+00 9.52112e-01 30 2014 10 5.32429e+00 1.10199e+00 118 2014 11 4.68120e+00 6.93200e-01 105 2014 12 4.10027e+00 7.98356e-01 82 2015 1 6.98638e+00 1.85739e+00 55 2015 2 5.86128e+00 1.17648e+00 68 2015 3 7.13006e+00 3.11086e-01 16 2015 4 nan nan 0 2015 5 8.58322e+00 3.78176e+00 8 2015 6 6.25890e+00 8.06661e-02 16 2015 7 nan nan 0 2015 8 4.20631e+00 7.52642e-01 23 2015 9 nan nan 0 2015 10 4.38409e+00 4.62567e-01 57 2015 11 8.97255e+00 1.48159e-01 8 2015 12 5.26644e+00 2.21266e-01 16 2016 1 1.00558e+01 7.22883e-01 32 2016 2 1.02568e+01 9.20614e-01 41 2016 3 1.01568e+01 1.59055e-01 21 2016 4 1.15138e+01 8.69168e-01 18 2016 5 7.39962e+00 2.40343e-01 16 2016 6 5.77083e+00 5.71057e-01 32 2016 7 5.75289e+00 4.22468e-01 32 2016 8 6.87411e+00 4.60486e-01 11 2016 9 6.17896e+00 3.96766e-01 67 2016 10 4.16700e+00 1.52743e+00 65 2016 11 3.49733e+00 4.14614e-01 97 2016 12 5.76095e+00 4.78769e-01 51 2017 1 1.03209e+01 6.38007e-02 8 2017 2 9.60666e+00 1.08592e+00 39 2017 3 6.81657e+00 1.91108e+00 30 2017 4 6.89764e+00 1.25139e+00 21 2017 5 6.91725e+00 1.92281e+00 43 2017 6 nan nan 0 2017 7 1.12730e+01 4.79777e-01 11 2017 8 8.66353e+00 3.66420e-01 16 2017 9 7.33736e+00 1.42938e+00 42 2017 10 9.02933e+00 1.51350e+00 42 2017 11 5.91078e+00 2.27811e+00 77 2017 12 4.96475e+00 5.77102e-01 48 2018 1 4.91494e+00 9.13535e-01 93 2018 2 2.98876e+00 3.96262e-01 9 2018 3 7.21410e+00 1.32667e+00 39 2018 4 5.78479e+00 6.06423e-01 64 2018 5 5.26618e+00 8.46371e-02 16 2018 6 nan nan 0 2018 7 nan nan 0 2018 8 7.80960e+00 1.92671e-01 13 2018 9 1.05601e+01 2.73233e+00 36 2018 10 6.15600e+00 9.85033e-01 63 2018 11 8.31841e+00 1.21178e-01 16 2018 12 9.21989e+00 3.96747e-01 38 2019 1 9.84502e+00 1.92985e-01 11 2019 2 6.46926e+00 6.35011e-01 24 2019 3 6.03237e+00 1.50340e+00 56 2019 4 7.13281e+00 6.93041e-01 13 2019 5 8.17155e+00 3.88419e-01 40 2019 6 6.93513e+00 1.53187e-01 5 2019 7 nan nan 0 2019 8 4.84237e+00 1.09935e+00 8 2019 9 4.96532e+00 7.29076e-01 33 2019 10 4.46394e+00 2.56940e-01 39 2019 11 4.86915e+00 1.26041e+00 52 2019 12 6.49881e+00 2.37964e+00 24 2020 1 8.17704e+00 2.11129e+00 38 2020 2 1.07280e+01 1.62058e-01 4 2020 3 8.57456e+00 2.70186e-01 16 2020 4 6.56011e+00 1.35192e+00 29 2020 5 nan nan 0 2020 6 7.58281e+00 1.45550e+00 25 2020 7 6.56647e+00 2.15885e-02 9 2020 8 6.23685e+00 3.68544e-01 9 2020 9 nan nan 0 2020 10 8.60686e+00 2.91510e-02 13 2020 11 4.54968e+00 1.90655e-01 53 2020 12 6.34746e+00 1.06855e+00 68 2021 1 6.82628e+00 9.23274e-01 32 2021 2 7.11652e+00 1.13000e+00 46 2021 3 7.71880e+00 1.37723e+00 63 2021 4 7.85917e+00 4.08387e-03 2 2021 5 6.00087e+00 7.93752e-02 9 2021 6 nan nan 0 2021 7 nan nan 0 2021 8 6.73805e+00 2.32432e-01 16 2021 9 1.09356e+01 9.08470e-03 2 2021 10 nan nan 0 2021 11 4.86997e+00 5.73958e-01 69 2021 12 4.02887e+00 9.33406e-02 16 2022 1 6.91534e+00 3.68797e-01 35 2022 2 7.39618e+00 1.59514e+00 48 2022 3 5.65255e+00 1.46790e+00 72 2022 4 nan nan 0 2022 5 8.96806e+00 1.10921e+00 21 2022 6 nan nan 0 2022 7 7.45759e+00 4.36912e-01 16 2022 8 1.03630e+01 2.79086e-02 3 2022 9 5.67418e+00 1.23448e-01 14 2022 10 4.98430e+00 6.53991e-01 151 2022 11 4.46349e+00 1.18336e+00 55 2022 12 7.50631e+00 9.90896e-01 63 2023 1 7.72227e+00 7.54212e-01 89 2023 2 9.04537e+00 1.02479e+00 38 2023 3 5.77468e+00 2.88671e-01 27 2023 4 8.41465e+00 1.21075e+00 31 2023 5 4.64812e+00 2.90803e+00 24 2023 6 5.46299e+00 1.45115e-01 12 2023 7 8.56919e+00 1.83623e+00 36 2023 8 6.86157e+00 1.96042e+00 12 2023 9 4.70200e+00 7.70102e-01 78 2023 10 4.06422e+00 7.17248e-01 102 2023 11 3.99944e+00 7.65263e-01 112 2023 12 3.74979e+00 5.97842e-01 59 2024 1 6.26238e+00 3.14561e-01 36 2024 2 8.80281e+00 5.60234e-01 47 2024 3 8.08301e+00 1.40678e+00 32 2024 4 8.82463e+00 2.59140e-01 11