Year | Value | 2022 | 42,899 | 2021 | 42,384 | 2020 | 41,753 | 2019 | 41,013 | 2018 | 40,233 | 2017 | 39,485 | 2016 | 38,816 | 2015 | 38,236 | 2014 | 37,704 | 2013 | 37,151 | 2012 | 36,498 | 2011 | 35,676 | 2010 | 34,604 | 2009 | 33,386 | 2008 | 32,216 | 2007 | 31,166 | 2006 | 30,282 | 2005 | 29,552 | 2004 | 28,912 | 2003 | 28,302 | 2002 | 27,693 | 2001 | 27,064 | 2000 | 26,399 | 1999 | 25,674 | 1998 | 24,874 | 1997 | 23,994 | 1996 | 23,046 | 1995 | 22,082 | 1994 | 21,162 | 1993 | 20,335 | 1992 | 19,678 | 1991 | 19,188 | 1990 | 18,772 | 1989 | 18,394 | 1988 | 18,050 | 1987 | 17,747 | 1986 | 17,487 | 1985 | 17,268 | 1984 | 17,075 | 1983 | 16,872 | 1982 | 16,683 | 1981 | 16,548 | 1980 | 16,416 | 1979 | 16,231 | 1978 | 15,981 | 1977 | 15,659 | 1976 | 15,261 | 1975 | 14,815 | 1974 | 14,414 | 1973 | 14,070 | 1972 | 13,891 | 1971 | 13,965 | 1970 | 14,132 | 1969 | 14,248 | 1968 | 14,241 | 1967 | 14,137 | 1966 | 14,041 | 1965 | 14,118 | 1964 | 14,460 | 1963 | 14,976 | 1962 | 15,468 | 1961 | 15,668 | 1960 | 15,195 |
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