| Year | Value | | 2022 | 356,231 | | 2021 | 339,287 | | 2020 | 322,542 | | 2019 | 306,403 | | 2018 | 291,169 | | 2017 | 276,695 | | 2016 | 262,954 | | 2015 | 250,284 | | 2014 | 238,811 | | 2013 | 228,279 | | 2012 | 219,724 | | 2011 | 212,477 | | 2010 | 205,554 | | 2009 | 199,729 | | 2008 | 194,619 | | 2007 | 189,964 | | 2006 | 185,864 | | 2005 | 182,266 | | 2004 | 179,109 | | 2003 | 176,528 | | 2002 | 174,432 | | 2001 | 172,564 | | 2000 | 170,908 | | 1999 | 168,947 | | 1998 | 166,933 | | 1997 | 165,463 | | 1996 | 163,820 | | 1995 | 161,624 | | 1994 | 160,071 | | 1993 | 159,371 | | 1992 | 158,740 | | 1991 | 158,492 | | 1990 | 158,180 | | 1989 | 156,152 | | 1988 | 152,240 | | 1987 | 147,627 | | 1986 | 143,015 | | 1985 | 138,878 | | 1984 | 135,929 | | 1983 | 134,182 | | 1982 | 133,015 | | 1981 | 132,159 | | 1980 | 131,364 | | 1979 | 130,694 | | 1978 | 130,178 | | 1977 | 129,697 | | 1976 | 129,345 | | 1975 | 129,097 | | 1974 | 128,800 | | 1973 | 128,406 | | 1972 | 128,031 | | 1971 | 127,911 | | 1970 | 128,080 | | 1969 | 128,448 | | 1968 | 129,061 | | 1967 | 129,747 | | 1966 | 130,115 | | 1965 | 129,937 | | 1964 | 129,254 | | 1963 | 128,072 | | 1962 | 126,468 | | 1961 | 124,760 | | 1960 | 123,102 |
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