Year 1 2 3 4 5 6 7 8 9 10 11 12 Total 2024 108.0 47.2 17.5 7.4 2023 28.9 54.6 23.9 17.3 10.1 18.5 9.4 7.1 9.1 50.5 66.8 23.6 320 2022 105.4 46.2 47.7 61.2 28.4 27.7 10.9 0.2 0.8 76.2 65.0 84.8 555 2021 98.3 79.2 32.0 4.8 0.0 0.0 3.8 73.7 76.9 230.9 107.2 2020 181.6 85.6 22.1 27.2 29.7 21.6 6.8 15.5 47.2 84.0 106.4 133.9 762 2019 93.5 26.9 15.8 33.0 25.7 9.6 20.3 14.5 55.9 59.4 56.6 90.1 501 2018 94.7 34.0 9.9 55.1 7.9 17.5 0.0 1.3 29.7 47.7 101.3 114.0 513 2017 32.0 85.6 74.9 37.8 21.3 16.8 0.8 1.8 14.2 71.6 79.2 54.9 491 2016 30.5 88.4 110.0 2015 103.9 85.8 88.1 16.5 1.8 1.0 2014 30.5 127.0 116.3 47.0 20.8 4.3 6.6 12.4 53.3 89.4 98.5 84.1 690 2013 71.4 53.8 83.5 72.1 49.0 13.2 0.0 124.4 19.8 40.4 45.9 2012 77.2 51.4 57.0 32.2 19.0 31.4 14.0 3.0 1.0 109.2 116.0 135.9 647 2011 1.8 17.8 11.6 31.0 63.8 118.0 42.4 2010 112.8 27.9 63.8 33.3 35.3 11.2 0.8 0.0 2009 84.6 21.3 14.7 39.1 41.1 5.6 9.4 21.1 40.1 114.8 226.8 30.7 649 2008 53.8 38.6 41.4 26.7 11.4 12.4 6.1 26.9 9.1 30.0 108.4 61.4 426 2007 166.4 61.2 86.1 23.9 7.4 17.8 22.6 14.0 13.2 48.2 56.3 111.2 628 2006 156.0 33.3 30.7 32.3 17.8 14.2 2.8 3.0 20.8 34.0 245.6 92.7 683 2005 6.1 11.9 22.9 32.8 80.8 98.5 62.7 Average 13 8 10 35 64 112 82 94 56 49 33 22 572 Std Dev 9 7 9 32 28 63 35 45 28 32 18 13 126