Year | Value | 2022 | 1,371 | 2021 | 1,329 | 2020 | 1,283 | 2019 | 1,238 | 2018 | 1,204 | 2017 | 1,178 | 2016 | 1,157 | 2015 | 1,141 | 2014 | 1,125 | 2013 | 1,109 | 2012 | 1,091 | 2011 | 1,069 | 2010 | 1,036 | 2009 | 994 | 2008 | 950 | 2007 | 908 | 2006 | 867 | 2005 | 827 | 2004 | 785 | 2003 | 746 | 2002 | 711 | 2001 | 678 | 2000 | 644 | 1999 | 613 | 1998 | 588 | 1997 | 577 | 1996 | 580 | 1995 | 587 | 1994 | 594 | 1993 | 602 | 1992 | 613 | 1991 | 614 | 1990 | 594 | 1989 | 564 | 1988 | 533 | 1987 | 501 | 1986 | 465 | 1985 | 432 | 1984 | 402 | 1983 | 376 | 1982 | 355 | 1981 | 334 | 1980 | 306 | 1979 | 277 | 1978 | 250 | 1977 | 228 | 1976 | 214 | 1975 | 209 | 1974 | 211 | 1973 | 218 | 1972 | 226 | 1971 | 228 | 1970 | 220 | 1969 | 207 | 1968 | 192 | 1967 | 179 | 1966 | 165 | 1965 | 150 | 1964 | 141 | 1963 | 137 | 1962 | 134 | 1961 | 133 | 1960 | 132 |
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