Year | Value | 2022 | 47,638 | 2021 | 46,496 | 2020 | 46,087 | 2019 | 45,838 | 2018 | 45,621 | 2017 | 45,817 | 2016 | 46,193 | 2015 | 46,474 | 2014 | 47,129 | 2013 | 48,208 | 2012 | 49,020 | 2011 | 49,895 | 2010 | 51,373 | 2009 | 53,135 | 2008 | 55,111 | 2007 | 57,970 | 2006 | 60,067 | 2005 | 61,610 | 2004 | 63,144 | 2003 | 64,428 | 2002 | 65,341 | 2001 | 66,739 | 2000 | 68,789 | 1999 | 70,504 | 1998 | 71,883 | 1997 | 73,118 | 1996 | 73,832 | 1995 | 73,944 | 1994 | 73,601 | 1993 | 73,273 | 1992 | 73,103 | 1991 | 72,769 | 1990 | 72,090 | 1989 | 71,538 | 1988 | 71,382 | 1987 | 71,587 | 1986 | 71,679 | 1985 | 72,031 | 1984 | 72,707 | 1983 | 72,879 | 1982 | 72,535 | 1981 | 72,375 | 1980 | 72,497 | 1979 | 72,423 | 1978 | 72,307 | 1977 | 72,244 | 1976 | 72,276 | 1975 | 72,197 | 1974 | 72,654 | 1973 | 73,770 | 1972 | 74,672 | 1971 | 75,294 | 1970 | 76,055 | 1969 | 76,441 | 1968 | 75,796 | 1967 | 74,297 | 1966 | 71,866 | 1965 | 67,380 | 1964 | 63,000 | 1963 | 61,360 | 1962 | 61,222 | 1961 | 61,638 | 1960 | 63,306 |
|