Year | Value | 2022 | 131,714 | 2021 | 131,074 | 2020 | 134,921 | 2019 | 133,889 | 2018 | 133,968 | 2017 | 135,410 | 2016 | 138,442 | 2015 | 141,945 | 2014 | 145,443 | 2013 | 147,582 | 2012 | 149,163 | 2011 | 150,397 | 2010 | 151,724 | 2009 | 153,737 | 2008 | 155,937 | 2007 | 157,380 | 2006 | 158,784 | 2005 | 160,480 | 2004 | 162,040 | 2003 | 162,997 | 2002 | 163,451 | 2001 | 162,535 | 2000 | 167,481 | 1999 | 168,396 | 1998 | 167,996 | 1997 | 165,891 | 1996 | 165,375 | 1995 | 161,132 | 1994 | 149,206 | 1993 | 137,428 | 1992 | 130,671 | 1991 | 130,132 | 1990 | 134,428 | 1989 | 141,167 | 1988 | 147,043 | 1987 | 151,230 | 1986 | 154,517 | 1985 | 157,369 | 1984 | 160,021 | 1983 | 162,684 | 1982 | 164,835 | 1981 | 166,522 | 1980 | 168,514 | 1979 | 169,965 | 1978 | 169,364 | 1977 | 166,468 | 1976 | 161,335 | 1975 | 154,200 | 1974 | 146,126 | 1973 | 138,231 | 1972 | 131,285 | 1971 | 125,619 | 1970 | 120,702 | 1969 | 115,017 | 1968 | 107,279 | 1967 | 97,347 | 1966 | 86,566 | 1965 | 78,111 | 1964 | 74,928 | 1963 | 77,905 | 1962 | 86,099 | 1961 | 96,913 | 1960 | 107,114 |
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