| Year | Value | | 2022 | 262,801 | | 2021 | 292,237 | | 2020 | 328,398 | | 2019 | 356,144 | | 2018 | 374,706 | | 2017 | 389,077 | | 2016 | 400,256 | | 2015 | 409,236 | | 2014 | 416,902 | | 2013 | 423,741 | | 2012 | 429,583 | | 2011 | 433,431 | | 2010 | 433,627 | | 2009 | 405,148 | | 2008 | 343,096 | | 2007 | 275,163 | | 2006 | 217,322 | | 2005 | 181,391 | | 2004 | 162,738 | | 2003 | 148,429 | | 2002 | 134,919 | | 2001 | 122,882 | | 2000 | 112,737 | | 1999 | 104,628 | | 1998 | 98,440 | | 1997 | 93,881 | | 1996 | 90,514 | | 1995 | 86,257 | | 1994 | 80,473 | | 1993 | 74,763 | | 1992 | 69,774 | | 1991 | 65,869 | | 1990 | 63,149 | | 1989 | 61,413 | | 1988 | 60,268 | | 1987 | 59,305 | | 1986 | 58,138 | | 1985 | 54,959 | | 1984 | 50,019 | | 1983 | 45,495 | | 1982 | 41,725 | | 1981 | 38,588 | | 1980 | 34,340 | | 1979 | 28,951 | | 1978 | 24,250 | | 1977 | 20,544 | | 1976 | 17,735 | | 1975 | 15,550 | | 1974 | 13,592 | | 1973 | 11,724 | | 1972 | 10,133 | | 1971 | 8,896 | | 1970 | 7,989 | | 1969 | 7,296 | | 1968 | 6,702 | | 1967 | 6,277 | | 1966 | 5,981 | | 1965 | 5,679 | | 1964 | 5,377 | | 1963 | 5,078 | | 1962 | 4,789 | | 1961 | 4,514 | | 1960 | 4,254 |
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