| Year | Value | | 2022 | 1,244,364,814 | | 2021 | 1,241,268,556 | | 2020 | 1,241,718,902 | | 2019 | 1,236,709,936 | | 2018 | 1,231,508,785 | | 2017 | 1,225,544,265 | | 2016 | 1,219,354,936 | | 2015 | 1,212,444,178 | | 2014 | 1,205,686,277 | | 2013 | 1,198,818,424 | | 2012 | 1,192,042,103 | | 2011 | 1,185,474,102 | | 2010 | 1,180,459,116 | | 2009 | 1,173,066,945 | | 2008 | 1,164,409,232 | | 2007 | 1,154,791,752 | | 2006 | 1,145,510,251 | | 2005 | 1,136,981,371 | | 2004 | 1,129,571,825 | | 2003 | 1,122,515,138 | | 2002 | 1,115,681,856 | | 2001 | 1,108,870,086 | | 2000 | 1,102,139,639 | | 1999 | 1,095,437,130 | | 1998 | 1,088,601,219 | | 1997 | 1,081,668,120 | | 1996 | 1,074,550,287 | | 1995 | 1,067,301,466 | | 1994 | 1,060,148,248 | | 1993 | 1,052,626,906 | | 1992 | 1,044,477,102 | | 1991 | 1,035,875,187 | | 1990 | 1,027,500,717 | | 1989 | 1,020,150,995 | | 1988 | 1,012,656,998 | | 1987 | 1,005,670,379 | | 1986 | 998,874,393 | | 1985 | 992,224,395 | | 1984 | 985,784,657 | | 1983 | 979,407,389 | | 1982 | 972,633,145 | | 1981 | 965,344,988 | | 1980 | 957,608,950 | | 1979 | 949,816,222 | | 1978 | 941,758,606 | | 1977 | 933,977,783 | | 1976 | 926,268,687 | | 1975 | 918,459,692 | | 1974 | 910,065,838 | | 1973 | 901,467,097 | | 1972 | 892,701,235 | | 1971 | 883,628,458 | | 1970 | 873,281,935 | | 1969 | 864,581,951 | | 1968 | 855,824,550 | | 1967 | 847,172,799 | | 1966 | 838,420,656 | | 1965 | 829,301,955 | | 1964 | 819,716,063 | | 1963 | 809,831,666 | | 1962 | 799,922,883 | | 1961 | 789,918,790 | | 1960 | 780,138,593 |
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