| Year | Value | | 2022 | 99,527 | | 2021 | 104,811 | | 2020 | 110,458 | | 2019 | 114,709 | | 2018 | 118,858 | | 2017 | 122,521 | | 2016 | 124,750 | | 2015 | 125,791 | | 2014 | 125,967 | | 2013 | 125,156 | | 2012 | 123,618 | | 2011 | 121,885 | | 2010 | 120,610 | | 2009 | 119,979 | | 2008 | 120,063 | | 2007 | 120,531 | | 2006 | 121,053 | | 2005 | 121,394 | | 2004 | 121,486 | | 2003 | 121,553 | | 2002 | 121,758 | | 2001 | 122,116 | | 2000 | 123,679 | | 1999 | 125,236 | | 1998 | 127,167 | | 1997 | 129,459 | | 1996 | 132,035 | | 1995 | 134,788 | | 1994 | 137,683 | | 1993 | 140,661 | | 1992 | 143,650 | | 1991 | 146,611 | | 1990 | 149,708 | | 1989 | 149,651 | | 1988 | 148,677 | | 1987 | 149,115 | | 1986 | 149,413 | | 1985 | 149,486 | | 1984 | 148,541 | | 1983 | 146,345 | | 1982 | 142,874 | | 1981 | 138,338 | | 1980 | 133,098 | | 1979 | 127,087 | | 1978 | 120,859 | | 1977 | 114,678 | | 1976 | 108,676 | | 1975 | 103,205 | | 1974 | 97,894 | | 1973 | 92,716 | | 1972 | 87,913 | | 1971 | 83,442 | | 1970 | 79,460 | | 1969 | 76,274 | | 1968 | 73,813 | | 1967 | 72,076 | | 1966 | 71,062 | | 1965 | 70,429 | | 1964 | 69,979 | | 1963 | 69,493 | | 1962 | 68,798 | | 1961 | 67,743 | | 1960 | 66,237 |
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