Year | Value | 2023 | 1,265 | 2022 | 1,278 | 2021 | 1,281 | 2020 | 1,271 | 2019 | 1,247 | 2018 | 1,208 | 2017 | 1,168 | 2016 | 1,121 | 2015 | 1,087 | 2014 | 1,083 | 2013 | 1,091 | 2012 | 1,096 | 2011 | 1,106 | 2010 | 1,109 | 2009 | 1,097 | 2008 | 1,089 | 2007 | 1,089 | 2006 | 1,095 | 2005 | 1,097 | 2004 | 1,086 | 2003 | 1,058 | 2002 | 1,016 | 2001 | 975 | 2000 | 944 | 1999 | 921 | 1998 | 900 | 1997 | 879 | 1996 | 855 | 1995 | 827 | 1994 | 794 | 1993 | 756 | 1992 | 715 | 1991 | 671 | 1990 | 633 | 1989 | 613 | 1988 | 603 | 1987 | 589 | 1986 | 573 | 1985 | 557 | 1984 | 539 | 1983 | 527 | 1982 | 518 | 1981 | 511 | 1980 | 505 | 1979 | 499 | 1978 | 488 | 1977 | 477 | 1976 | 469 | 1975 | 462 |
|