Year | Value | 2022 | 1,112 | 2021 | 1,035 | 2020 | 944 | 2019 | 845 | 2018 | 776 | 2017 | 729 | 2016 | 692 | 2015 | 678 | 2014 | 667 | 2013 | 640 | 2012 | 615 | 2011 | 593 | 2010 | 576 | 2009 | 581 | 2008 | 604 | 2007 | 620 | 2006 | 624 | 2005 | 619 | 2004 | 608 | 2003 | 596 | 2002 | 586 | 2001 | 574 | 2000 | 562 | 1999 | 559 | 1998 | 567 | 1997 | 589 | 1996 | 626 | 1995 | 667 | 1994 | 667 | 1993 | 620 | 1992 | 571 | 1991 | 542 | 1990 | 525 | 1989 | 507 | 1988 | 490 | 1987 | 476 | 1986 | 464 | 1985 | 453 | 1984 | 440 | 1983 | 428 | 1982 | 415 | 1981 | 401 | 1980 | 389 | 1979 | 379 | 1978 | 371 | 1977 | 366 | 1976 | 362 | 1975 | 356 | 1974 | 348 | 1973 | 340 | 1972 | 331 | 1971 | 321 | 1970 | 312 | 1969 | 303 | 1968 | 294 | 1967 | 285 | 1966 | 279 | 1965 | 273 | 1964 | 266 | 1963 | 260 | 1962 | 252 | 1961 | 240 | 1960 | 230 |
|