| Year | Value | | 2022 | 193,217 | | 2021 | 186,733 | | 2020 | 181,460 | | 2019 | 177,507 | | 2018 | 175,031 | | 2017 | 173,429 | | 2016 | 172,498 | | 2015 | 171,477 | | 2014 | 170,524 | | 2013 | 170,456 | | 2012 | 170,496 | | 2011 | 164,892 | | 2010 | 158,278 | | 2009 | 156,165 | | 2008 | 152,670 | | 2007 | 147,452 | | 2006 | 141,557 | | 2005 | 134,574 | | 2004 | 128,684 | | 2003 | 126,397 | | 2002 | 124,264 | | 2001 | 119,793 | | 2000 | 114,891 | | 1999 | 109,435 | | 1998 | 102,456 | | 1997 | 91,364 | | 1996 | 83,094 | | 1995 | 79,212 | | 1994 | 76,700 | | 1993 | 75,066 | | 1992 | 70,595 | | 1991 | 65,368 | | 1990 | 73,374 | | 1989 | 82,465 | | 1988 | 79,567 | | 1987 | 77,206 | | 1986 | 75,303 | | 1985 | 73,706 | | 1984 | 72,304 | | 1983 | 71,098 | | 1982 | 70,093 | | 1981 | 69,126 | | 1980 | 67,970 | | 1979 | 66,076 | | 1978 | 64,058 | | 1977 | 62,739 | | 1976 | 61,828 | | 1975 | 61,186 | | 1974 | 61,207 | | 1973 | 61,293 | | 1972 | 60,594 | | 1971 | 59,528 | | 1970 | 58,210 | | 1969 | 56,747 | | 1968 | 55,244 | | 1967 | 53,728 | | 1966 | 52,243 | | 1965 | 50,753 | | 1964 | 49,273 | | 1963 | 47,848 | | 1962 | 46,494 | | 1961 | 45,214 | | 1960 | 44,008 |
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