Year | Value | 2022 | 35,789 | 2021 | 34,467 | 2020 | 33,205 | 2019 | 31,821 | 2018 | 30,466 | 2017 | 29,163 | 2016 | 27,923 | 2015 | 26,760 | 2014 | 25,691 | 2013 | 24,703 | 2012 | 23,756 | 2011 | 22,829 | 2010 | 21,888 | 2009 | 20,945 | 2008 | 19,861 | 2007 | 18,691 | 2006 | 17,672 | 2005 | 16,787 | 2004 | 16,010 | 2003 | 15,561 | 2002 | 15,406 | 2001 | 15,305 | 2000 | 15,241 | 1999 | 15,187 | 1998 | 15,146 | 1997 | 15,098 | 1996 | 15,013 | 1995 | 14,873 | 1994 | 14,685 | 1993 | 14,462 | 1992 | 14,201 | 1991 | 13,902 | 1990 | 13,554 | 1989 | 13,135 | 1988 | 12,627 | 1987 | 12,081 | 1986 | 11,606 | 1985 | 11,265 | 1984 | 11,058 | 1983 | 10,990 | 1982 | 10,996 | 1981 | 10,882 | 1980 | 10,516 | 1979 | 9,956 | 1978 | 9,253 | 1977 | 8,441 | 1976 | 7,636 | 1975 | 6,914 | 1974 | 6,261 | 1973 | 5,659 | 1972 | 5,168 | 1971 | 4,874 | 1970 | 4,763 | 1969 | 4,748 | 1968 | 4,791 | 1967 | 4,873 | 1966 | 4,984 | 1965 | 5,120 | 1964 | 5,237 | 1963 | 5,351 | 1962 | 5,481 | 1961 | 5,558 | 1960 | 5,536 |
|