Year | Value | 2022 | 3,021 | 2021 | 2,973 | 2020 | 2,963 | 2019 | 2,979 | 2018 | 3,042 | 2017 | 3,110 | 2016 | 3,134 | 2015 | 3,166 | 2014 | 3,237 | 2013 | 3,262 | 2012 | 3,244 | 2011 | 3,231 | 2010 | 3,237 | 2009 | 3,239 | 2008 | 3,250 | 2007 | 3,284 | 2006 | 3,365 | 2005 | 3,479 | 2004 | 3,581 | 2003 | 3,649 | 2002 | 3,675 | 2001 | 3,648 | 2000 | 3,565 | 1999 | 3,438 | 1998 | 3,273 | 1997 | 3,083 | 1996 | 2,954 | 1995 | 2,889 | 1994 | 2,821 | 1993 | 2,763 | 1992 | 2,711 | 1991 | 2,652 | 1990 | 2,586 | 1989 | 2,523 | 1988 | 2,455 | 1987 | 2,379 | 1986 | 2,355 | 1985 | 2,370 | 1984 | 2,368 | 1983 | 2,363 | 1982 | 2,364 | 1981 | 2,366 | 1980 | 2,363 | 1979 | 2,355 | 1978 | 2,349 | 1977 | 2,352 | 1976 | 2,378 | 1975 | 2,409 | 1974 | 2,419 | 1973 | 2,427 | 1972 | 2,444 | 1971 | 2,458 | 1970 | 2,462 | 1969 | 2,460 | 1968 | 2,451 | 1967 | 2,436 | 1966 | 2,397 | 1965 | 2,339 | 1964 | 2,282 | 1963 | 2,229 | 1962 | 2,175 | 1961 | 2,123 | 1960 | 2,071 |
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