Year | Value | 2022 | 208,383 | 2021 | 203,070 | 2020 | 196,956 | 2019 | 191,570 | 2018 | 186,542 | 2017 | 182,717 | 2016 | 180,387 | 2015 | 178,552 | 2014 | 177,238 | 2013 | 176,833 | 2012 | 176,549 | 2011 | 175,691 | 2010 | 175,207 | 2009 | 175,701 | 2008 | 176,721 | 2007 | 179,746 | 2006 | 185,434 | 2005 | 190,930 | 2004 | 194,576 | 2003 | 195,370 | 2002 | 191,635 | 2001 | 183,062 | 2000 | 172,353 | 1999 | 162,192 | 1998 | 153,580 | 1997 | 147,073 | 1996 | 142,662 | 1995 | 139,411 | 1994 | 136,635 | 1993 | 134,050 | 1992 | 131,557 | 1991 | 129,944 | 1990 | 129,266 | 1989 | 129,066 | 1988 | 129,718 | 1987 | 130,925 | 1986 | 132,142 | 1985 | 133,811 | 1984 | 136,225 | 1983 | 139,021 | 1982 | 141,115 | 1981 | 143,733 | 1980 | 147,270 | 1979 | 148,249 | 1978 | 147,175 | 1977 | 146,573 | 1976 | 144,939 | 1975 | 142,003 | 1974 | 141,434 | 1973 | 142,944 | 1972 | 144,390 | 1971 | 146,067 | 1970 | 147,233 | 1969 | 147,956 | 1968 | 148,099 | 1967 | 147,343 | 1966 | 145,888 | 1965 | 144,194 | 1964 | 141,921 | 1963 | 139,331 | 1962 | 137,082 | 1961 | 135,138 | 1960 | 133,385 |
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