Year | Value | 2022 | 54,996 | 2021 | 54,575 | 2020 | 53,953 | 2019 | 53,066 | 2018 | 51,986 | 2017 | 50,790 | 2016 | 49,521 | 2015 | 48,230 | 2014 | 46,969 | 2013 | 45,798 | 2012 | 44,772 | 2011 | 43,909 | 2010 | 43,017 | 2009 | 42,045 | 2008 | 41,100 | 2007 | 40,140 | 2006 | 39,169 | 2005 | 38,218 | 2004 | 37,342 | 2003 | 36,587 | 2002 | 35,967 | 2001 | 35,468 | 2000 | 35,030 | 1999 | 34,571 | 1998 | 34,045 | 1997 | 33,378 | 1996 | 32,520 | 1995 | 31,490 | 1994 | 30,359 | 1993 | 29,236 | 1992 | 28,383 | 1991 | 27,882 | 1990 | 27,546 | 1989 | 27,283 | 1988 | 27,031 | 1987 | 26,717 | 1986 | 26,292 | 1985 | 25,749 | 1984 | 25,105 | 1983 | 24,397 | 1982 | 23,663 | 1981 | 22,886 | 1980 | 22,020 | 1979 | 21,056 | 1978 | 20,054 | 1977 | 19,141 | 1976 | 18,422 | 1975 | 18,125 | 1974 | 18,280 | 1973 | 18,497 | 1972 | 18,719 | 1971 | 18,976 | 1970 | 19,175 | 1969 | 19,384 | 1968 | 19,607 | 1967 | 19,790 | 1966 | 19,815 | 1965 | 19,529 | 1964 | 18,859 | 1963 | 17,898 | 1962 | 16,851 | 1961 | 16,013 | 1960 | 15,843 |
|