| Year | Value | | 2022 | 193,332 | | 2021 | 204,914 | | 2020 | 205,019 | | 2019 | 205,607 | | 2018 | 206,154 | | 2017 | 206,725 | | 2016 | 208,132 | | 2015 | 207,206 | | 2014 | 201,965 | | 2013 | 194,306 | | 2012 | 186,266 | | 2011 | 178,472 | | 2010 | 171,949 | | 2009 | 168,248 | | 2008 | 166,920 | | 2007 | 167,552 | | 2006 | 170,096 | | 2005 | 174,847 | | 2004 | 181,614 | | 2003 | 188,867 | | 2002 | 194,888 | | 2001 | 201,309 | | 2000 | 205,109 | | 1999 | 203,845 | | 1998 | 201,696 | | 1997 | 200,072 | | 1996 | 199,466 | | 1995 | 200,152 | | 1994 | 201,685 | | 1993 | 202,531 | | 1992 | 203,084 | | 1991 | 203,523 | | 1990 | 202,169 | | 1989 | 198,634 | | 1988 | 190,200 | | 1987 | 177,550 | | 1986 | 164,721 | | 1985 | 154,613 | | 1984 | 151,441 | | 1983 | 155,745 | | 1982 | 163,207 | | 1981 | 170,955 | | 1980 | 178,648 | | 1979 | 183,627 | | 1978 | 185,198 | | 1977 | 185,837 | | 1976 | 184,763 | | 1975 | 181,478 | | 1974 | 177,099 | | 1973 | 172,344 | | 1972 | 167,662 | | 1971 | 163,162 | | 1970 | 158,333 | | 1969 | 153,199 | | 1968 | 148,149 | | 1967 | 143,074 | | 1966 | 137,704 | | 1965 | 131,979 | | 1964 | 125,740 | | 1963 | 118,986 | | 1962 | 112,323 | | 1961 | 105,385 | | 1960 | 98,330 |
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