* 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 0 ? 52.5 39 34 33 18 22 13 19 9.2 21 20 20 16 17 19 19.3 5.2 1 ? 45.7 41 40 26 22 24 17 20 19 28 19 24 16 19 21.8 14.5 16.0 2 ? 50.0 37 33 20 23 28 16 19 19 18 27 19 15 17 15.8 12.4 6.6 3 ? 42.7 25 22 17 11 23 12 11 16 12 18 11 12 15 5.2 7.4 4 ? 29.4 8.8 7.1 6.0 4.9 11 4.6 4.4 6.4 3.9 4.6 4.6 5.7 5.6 0.4 0.5 5 ? 9.3 7.3 5.8 5.7 5.6 4.5 4.2 4.3 4.6 4.6 4.2 3.9 5.2 4.6 0.7 0.6 6 ? 8.8 4.8 5.2 5.5 4.9 4.5 3.9 3.7 3.7 3.6 3.4 3.5 4.8 4.2 0.5 0.1 7 ? 6.6 6.3 4.3 5.0 4.1 3.4 3.5 3.2 4.0 3.4 2.9 3.3 4.0 3.7 0.5 0 8 ? 7.4 5.5 4.8 3.1 3.3 1.6 2.2 2.8 2.2 1.8 1.7 1.5 2.5 3.5 0.5 0 9 10.2 9.0 6.5 6.0 6.0 5.5 3.9 3.3 3.8 3.8 4.0 3.3 3.5 4.0 4.0 1.0 0.4 10 20.3 17 9.7 7.8 5.5 4.9 3.3 3.9 4.0 6.5 3.3 6.7 3.0 4.4 4.5 0.9 0.2 11 42.8 28 19 22 12 12 10 9.4 9.9 20 11 15 11 5.4 15 1.9 1.2 12 52.5 39 34 33 18 22 13 19 9.2 21 20 20 16 17 19 19.3 5.2