Year | |
---|---|
1983 | 57.7 |
1984 | 61.0 |
1985 | 63.6 |
1986 | 66.7 |
1987 | 69.7 |
1988 | 72.3 |
1989 | 74.3 |
1990 | 77.5 |
1991 | 81.4 |
1992 | 85.4 |
1993 | 86.2 |
1994 | 87.8 |
1995 | 89.5 |
1996 | 92.0 |
1997 | 93.1 |
1998 | 93.0 |
1999 | 93.1 |
2000 | 94.3 |
2001 | 96.1 |
2002 | 97.6 |
2003 | 101.1 |
2004 | 102.5 |
2005 | 104.3 |
2006 | 106.8 |
2007 | 108.2 |
2008 | 111.5 |
2009 | 115.7 |
2010 | 116.5 |
2011 | 118.6 |
2012 | 122.6 |
2013 | 127.6 |
2014 | 126.7 |
2015 | 128.7 |
2016 | 131.0 |
2017 | 132.6 |
2018 | 134.1 |
2019 | 137.1 |