| Year | Value | | 2022 | 254,284 | | 2021 | 247,827 | | 2020 | 240,858 | | 2019 | 233,542 | | 2018 | 226,038 | | 2017 | 218,768 | | 2016 | 212,921 | | 2015 | 207,694 | | 2014 | 200,916 | | 2013 | 192,257 | | 2012 | 183,320 | | 2011 | 174,633 | | 2010 | 166,682 | | 2009 | 160,643 | | 2008 | 155,970 | | 2007 | 151,215 | | 2006 | 146,443 | | 2005 | 141,722 | | 2004 | 137,137 | | 2003 | 132,793 | | 2002 | 128,725 | | 2001 | 125,147 | | 2000 | 121,986 | | 1999 | 118,892 | | 1998 | 115,814 | | 1997 | 112,781 | | 1996 | 109,805 | | 1995 | 106,901 | | 1994 | 104,012 | | 1993 | 101,196 | | 1992 | 98,319 | | 1991 | 95,453 | | 1990 | 92,841 | | 1989 | 90,406 | | 1988 | 88,126 | | 1987 | 85,929 | | 1986 | 83,725 | | 1985 | 81,530 | | 1984 | 79,394 | | 1983 | 77,337 | | 1982 | 75,358 | | 1981 | 73,438 | | 1980 | 71,536 | | 1979 | 69,633 | | 1978 | 67,731 | | 1977 | 65,823 | | 1976 | 63,921 | | 1975 | 62,031 | | 1974 | 60,181 | | 1973 | 58,387 | | 1972 | 56,643 | | 1971 | 54,958 | | 1970 | 53,355 | | 1969 | 51,842 | | 1968 | 50,435 | | 1967 | 49,131 | | 1966 | 47,908 | | 1965 | 46,753 | | 1964 | 45,569 | | 1963 | 44,207 | | 1962 | 42,657 | | 1961 | 41,008 | | 1960 | 39,306 |
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