Year | Value | 2014 | 270.57403050285 | 2013 | 229.20194818986 | 2012 | 229.84263298707 | 2011 | 192.04268959195 | 2010 | 209.04314489526 | 2009 | 194.50847727138 | 2008 | 189.4840407857 | 2007 | 180.99981329821 | 2006 | 175.72393439908 | 2005 | 166.10249277618 | 2004 | 168.02460492783 | 2003 | 169.4040405596 | 2002 | 172.1340041734 | 2001 | 178.0757703995 | 2000 | 170.42001420266 | 1999 | 172.45921208103 | 1998 | 183.80741774854 | 1997 | 169.73740521392 | 1996 | 160.01678758399 | 1995 | 175.10823808035 | 1994 | 145.77296440408 | 1993 | 143.73202223296 | 1992 | 152.74591352104 | 1991 | 148.35153152543 | 1990 | 160.61404436743 | 1989 | 161.30238107264 | 1988 | 175.76438263825 | 1987 | 171.14459063996 | 1986 | 151.60862277679 | 1985 | 150.440457343 | 1984 | 130.64619980138 | 1983 | 175.28455459731 | 1982 | 182.71996606214 | 1981 | 183.95612611596 | 1980 | 176.90674521695 | 1979 | 191.08675338604 | 1978 | 154.26936573994 | 1977 | 140.77859733815 | 1976 | 131.18306968383 | 1975 | 117.88769183924 | 1974 | 109.48365097589 | 1973 | 106.91387583895 | 1972 | 97.157450588497 | 1971 | 90.402522038019 |
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