Year | Value | 2022 | 1,212 | 2021 | 1,177 | 2020 | 1,141 | 2019 | 1,112 | 2018 | 1,091 | 2017 | 1,075 | 2016 | 1,056 | 2015 | 1,030 | 2014 | 1,006 | 2013 | 989 | 2012 | 982 | 2011 | 978 | 2010 | 971 | 2009 | 958 | 2008 | 943 | 2007 | 935 | 2006 | 938 | 2005 | 940 | 2004 | 936 | 2003 | 934 | 2002 | 931 | 2001 | 928 | 2000 | 930 | 1999 | 931 | 1998 | 929 | 1997 | 920 | 1996 | 906 | 1995 | 890 | 1994 | 876 | 1993 | 860 | 1992 | 844 | 1991 | 829 | 1990 | 811 | 1989 | 786 | 1988 | 761 | 1987 | 736 | 1986 | 708 | 1985 | 679 | 1984 | 651 | 1983 | 622 | 1982 | 594 | 1981 | 568 | 1980 | 543 | 1979 | 517 | 1978 | 487 | 1977 | 456 | 1976 | 423 | 1975 | 392 | 1974 | 367 | 1973 | 352 | 1972 | 342 | 1971 | 331 | 1970 | 316 | 1969 | 297 | 1968 | 273 | 1967 | 248 | 1966 | 225 | 1965 | 208 | 1964 | 197 | 1963 | 197 | 1962 | 202 | 1961 | 210 | 1960 | 216 |
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