Year | Value | 2022 | 35,179 | 2021 | 36,113 | 2020 | 37,402 | 2019 | 38,853 | 2018 | 40,574 | 2017 | 42,725 | 2016 | 45,364 | 2015 | 48,410 | 2014 | 51,609 | 2013 | 54,628 | 2012 | 57,106 | 2011 | 58,673 | 2010 | 58,325 | 2009 | 56,316 | 2008 | 53,952 | 2007 | 51,655 | 2006 | 49,760 | 2005 | 48,454 | 2004 | 47,742 | 2003 | 47,482 | 2002 | 47,412 | 2001 | 46,518 | 2000 | 44,288 | 1999 | 41,528 | 1998 | 38,958 | 1997 | 37,056 | 1996 | 36,134 | 1995 | 36,209 | 1994 | 37,039 | 1993 | 38,219 | 1992 | 38,751 | 1991 | 38,109 | 1990 | 36,878 | 1989 | 35,580 | 1988 | 34,554 | 1987 | 34,075 | 1986 | 34,265 | 1985 | 35,048 | 1984 | 36,199 | 1983 | 37,402 | 1982 | 38,070 | 1981 | 37,713 | 1980 | 36,632 | 1979 | 35,334 | 1978 | 33,990 | 1977 | 32,633 | 1976 | 31,239 | 1975 | 30,090 | 1974 | 29,906 | 1973 | 29,856 | 1972 | 29,526 | 1971 | 29,496 | 1970 | 29,332 | 1969 | 28,737 | 1968 | 27,598 | 1967 | 26,022 | 1966 | 24,348 | 1965 | 23,062 | 1964 | 22,483 | 1963 | 22,577 | 1962 | 23,084 | 1961 | 23,627 | 1960 | 23,692 |
|