1 2011 36.6 2 1997 35.0 3 2017 33.6 4 1982 33.5 5 1986 33.0 6 1984 31.0 7 2006 26.9 8 1979 25.9 9 1996 25.9 10 1999 25.9 11 2019 24.9 12 1980 24.8 13 2014 24.6 14 1983 23.5 15 1985 23.0 16 1998 22.3 17 1989 21.9 18 2005 21.7 19 1993 21.5 20 2009 21.0 21 1995 20.8 22 2020 20.0 23 2008 19.1 24 2016 18.9 25 2002 18.7 26 1994 18.3 27 1988 17.3 28 2003 17.2 29 2022 17.0 30 2023 17.0 31 2004 16.6 32 2000 16.3 33 1991 15.4 34 2018 14.9 35 2012 14.8 36 2021 14.8 37 2001 14.7 38 2013 14.3 39 1990 13.8 40 2007 13.8 41 1987 13.5 42 2015 13.0 43 2010 12.2 44 1981 11.7 45 1992 9.4