Year | Value | 2014 | 252.86790603258 | 2013 | 250.4235914586 | 2012 | 233.61415810816 | 2011 | 236.36851141458 | 2010 | 226.6981550586 | 2009 | 194.78778236386 | 2008 | 189.66366678259 | 2007 | 194.33403899354 | 2006 | 195.61123227042 | 2005 | 186.43440919737 | 2004 | 203.55573843264 | 2003 | 181.54733358198 | 2002 | 189.23746403562 | 2001 | 178.17156614036 | 2000 | 169.64537587511 | 1999 | 174.28338152766 | 1998 | 175.57025416606 | 1997 | 180.29726688692 | 1996 | 183.1012068866 | 1995 | 187.61517062958 | 1994 | 184.10044172941 | 1993 | 185.08071603488 | 1992 | 183.46747803427 | 1991 | 172.13538051378 | 1990 | 184.78331009916 | 1989 | 193.28894003204 | 1988 | 192.20436708496 | 1987 | 190.85891974779 | 1986 | 191.93961109015 | 1985 | 185.78273479808 | 1984 | 174.26069217077 | 1983 | 171.75881620606 | 1982 | 163.97111790149 | 1981 | 143.65175638585 | 1980 | 151.83487869091 | 1979 | 145.31853898633 | 1978 | 138.09264684843 | 1977 | 132.54339745182 | 1976 | 127.00786870197 | 1975 | 124.12135421044 | 1974 | 117.72943425992 | 1973 | 112.36759774101 | 1972 | 104.1573938111 | 1971 | 100.42475891934 |
|