Year 1 2 3 4 5 6 7 8 9 10 11 12 Total 2022 96.0 36.8 44.4 67.8 23.1 25.9 14.0 0.0 0.0 0.0 0.2 0.0 308 2021 0.2 69.1 71.1 187.2 97.2 2020 167.1 86.8 27.7 23.6 33.8 20.6 7.3 15.7 45.4 78.2 100.8 22.9 630 2019 80.0 23.1 15.0 30.0 23.6 10.1 18.8 13.0 55.6 57.9 49.7 86.3 463 2018 67.5 56.9 12.9 52.3 7.4 13.7 0.8 1.3 25.6 41.9 92.2 98.3 471 2017 25.9 0.0 20.3 19.8 13.7 1.3 1.8 16.5 79.2 96.5 56.9 2016 49.8 0.0 41.6 11.4 7.6 20.6 9.7 5.6 27.9 91.9 63.5 91.7 421 2015 86.3 54.6 66.8 15.0 1.8 4.6 1.3 28.2 38.6 80.8 145.0 129.3 652 2014 87.6 125.5 122.4 44.7 19.8 3.5 5.1 13.7 48.8 80.5 84.1 74.4 710 2013 63.0 50.5 77.5 58.4 40.4 10.9 0.0 23.9 130.6 19.5 76.9 39.1 591 2012 84.3 52.6 61.2 33.5 17.8 33.8 13.5 1.8 1.3 127.0 103.6 108.2 638 2011 113.8 58.9 58.6 68.8 42.7 5.6 13.7 7.6 7.9 52.8 103.1 45.0 578 2010 5.1 19.0 28.9 28.7 38.6 11.4 0.8 9.4 60.7 38.1 31.7 126.2 399 2009 75.2 17.8 38.1 36.6 31.2 3.6 5.1 13.5 157.7 32.5 2008 46.0 13.7 38.1 25.4 9.1 10.2 4.3 23.9 7.1 21.1 100.8 43.9 343 2007 173.0 63.8 85.8 23.9 7.1 15.7 24.1 12.7 11.9 45.2 50.0 111.8 625 2006 75.4 37.4 26.4 35.5 18.8 16.8 2.8 4.1 24.4 33.5 240.5 84.6 600 Average 81 44 50 36 21 14 8 10 36 55 99 73 530 Std Dev 44 33 30 18 13 8 7 9 33 33 58 38 127