| Year | Value | | 2022 | 1,412,175,000 | | 2021 | 1,412,360,000 | | 2020 | 1,411,100,000 | | 2019 | 1,407,745,000 | | 2018 | 1,402,760,000 | | 2017 | 1,396,215,000 | | 2016 | 1,387,790,000 | | 2015 | 1,379,860,000 | | 2014 | 1,371,860,000 | | 2013 | 1,363,240,000 | | 2012 | 1,354,190,000 | | 2011 | 1,345,035,000 | | 2010 | 1,337,705,000 | | 2009 | 1,331,260,000 | | 2008 | 1,324,655,000 | | 2007 | 1,317,885,000 | | 2006 | 1,311,020,000 | | 2005 | 1,303,720,000 | | 2004 | 1,296,075,000 | | 2003 | 1,288,400,000 | | 2002 | 1,280,400,000 | | 2001 | 1,271,850,000 | | 2000 | 1,262,645,000 | | 1999 | 1,252,735,000 | | 1998 | 1,241,935,000 | | 1997 | 1,230,075,000 | | 1996 | 1,217,550,000 | | 1995 | 1,204,855,000 | | 1994 | 1,191,835,000 | | 1993 | 1,178,440,000 | | 1992 | 1,164,970,000 | | 1991 | 1,150,780,000 | | 1990 | 1,135,185,000 | | 1989 | 1,118,650,000 | | 1988 | 1,101,630,000 | | 1987 | 1,084,035,000 | | 1986 | 1,066,790,000 | | 1985 | 1,051,040,000 | | 1984 | 1,036,825,000 | | 1983 | 1,023,310,000 | | 1982 | 1,008,630,000 | | 1981 | 993,885,000 | | 1980 | 981,235,000 | | 1979 | 969,005,000 | | 1978 | 956,165,000 | | 1977 | 943,455,000 | | 1976 | 930,685,000 | | 1975 | 916,395,000 | | 1974 | 900,350,000 | | 1973 | 881,940,000 | | 1972 | 862,030,000 | | 1971 | 841,105,000 | | 1970 | 818,315,000 | | 1969 | 796,025,000 | | 1968 | 774,510,000 | | 1967 | 754,550,000 | | 1966 | 735,400,000 | | 1965 | 715,185,000 | | 1964 | 698,355,000 | | 1963 | 682,335,000 | | 1962 | 665,770,000 | | 1961 | 660,330,000 | | 1960 | 667,070,000 |
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