Year | Value | 2022 | 5,316 | 2021 | 5,344 | 2020 | 5,358 | 2019 | 5,318 | 2018 | 5,273 | 2017 | 5,246 | 2016 | 5,219 | 2015 | 5,196 | 2014 | 5,176 | 2013 | 5,155 | 2012 | 5,134 | 2011 | 5,121 | 2010 | 5,132 | 2009 | 5,157 | 2008 | 5,188 | 2007 | 5,233 | 2006 | 5,291 | 2005 | 5,361 | 2004 | 5,442 | 2003 | 5,534 | 2002 | 5,473 | 2001 | 5,263 | 2000 | 5,075 | 1999 | 4,903 | 1998 | 4,748 | 1997 | 4,619 | 1996 | 4,498 | 1995 | 4,380 | 1994 | 4,311 | 1993 | 4,310 | 1992 | 4,261 | 1991 | 4,109 | 1990 | 3,930 | 1989 | 3,759 | 1988 | 3,597 | 1987 | 3,444 | 1986 | 3,300 | 1985 | 3,168 | 1984 | 3,047 | 1983 | 2,854 | 1982 | 2,604 | 1981 | 2,374 | 1980 | 2,144 | 1979 | 1,917 | 1978 | 1,700 | 1977 | 1,495 | 1976 | 1,305 | 1975 | 1,129 | 1974 | 963 | 1973 | 864 | 1972 | 828 | 1971 | 795 | 1970 | 763 | 1969 | 732 | 1968 | 699 | 1967 | 668 | 1966 | 640 | 1965 | 613 | 1964 | 589 | 1963 | 564 | 1962 | 542 | 1961 | 518 | 1960 | 493 |
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