Year | Value | 2022 | 188,473 | 2021 | 185,655 | 2020 | 183,794 | 2019 | 182,418 | 2018 | 180,893 | 2017 | 179,200 | 2016 | 177,933 | 2015 | 177,320 | 2014 | 176,904 | 2013 | 177,431 | 2012 | 179,207 | 2011 | 181,323 | 2010 | 182,993 | 2009 | 184,554 | 2008 | 185,079 | 2007 | 183,629 | 2006 | 181,977 | 2005 | 181,378 | 2004 | 180,388 | 2003 | 178,157 | 2002 | 175,338 | 2001 | 172,387 | 2000 | 169,269 | 1999 | 166,304 | 1998 | 164,282 | 1997 | 163,281 | 1996 | 162,850 | 1995 | 162,769 | 1994 | 162,050 | 1993 | 160,911 | 1992 | 160,025 | 1991 | 158,677 | 1990 | 157,471 | 1989 | 157,458 | 1988 | 158,007 | 1987 | 158,975 | 1986 | 161,689 | 1985 | 163,586 | 1984 | 162,836 | 1983 | 159,340 | 1982 | 152,062 | 1981 | 141,124 | 1980 | 130,242 | 1979 | 121,611 | 1978 | 114,437 | 1977 | 109,380 | 1976 | 106,218 | 1975 | 103,390 | 1974 | 100,309 | 1973 | 98,296 | 1972 | 97,743 | 1971 | 98,590 | 1970 | 100,832 | 1969 | 103,717 | 1968 | 106,333 | 1967 | 108,515 | 1966 | 110,821 | 1965 | 113,333 | 1964 | 116,228 | 1963 | 120,176 | 1962 | 124,133 | 1961 | 127,447 | 1960 | 131,551 |
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