Year | Value | 2022 | 41,569 | 2021 | 42,050 | 2020 | 43,413 | 2019 | 44,728 | 2018 | 45,989 | 2017 | 47,187 | 2016 | 48,329 | 2015 | 49,410 | 2014 | 50,419 | 2013 | 51,352 | 2012 | 52,203 | 2011 | 52,971 | 2010 | 53,416 | 2009 | 53,593 | 2008 | 53,816 | 2007 | 54,038 | 2006 | 54,208 | 2005 | 54,337 | 2004 | 54,435 | 2003 | 54,493 | 2002 | 54,496 | 2001 | 54,413 | 2000 | 54,224 | 1999 | 53,834 | 1998 | 53,164 | 1997 | 52,358 | 1996 | 51,538 | 1995 | 50,702 | 1994 | 49,840 | 1993 | 48,944 | 1992 | 48,015 | 1991 | 47,053 | 1990 | 46,047 | 1989 | 44,988 | 1988 | 43,687 | 1987 | 42,122 | 1986 | 40,527 | 1985 | 38,962 | 1984 | 37,437 | 1983 | 35,975 | 1982 | 34,569 | 1981 | 33,219 | 1980 | 31,988 | 1979 | 30,902 | 1978 | 29,892 | 1977 | 28,912 | 1976 | 27,964 | 1975 | 27,047 | 1974 | 26,174 | 1973 | 25,522 | 1972 | 25,084 | 1971 | 24,680 | 1970 | 23,969 | 1969 | 22,623 | 1968 | 21,001 | 1967 | 19,665 | 1966 | 18,794 | 1965 | 18,154 | 1964 | 17,537 | 1963 | 16,947 | 1962 | 16,387 | 1961 | 15,867 | 1960 | 15,374 |
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