| Year | Value | | 2021 | 1,018,938,155.628 | | 2020 | 896,588,866.654 | | 2019 | 1,829,769,954.1193 | | 2018 | 1,768,689,941.8247 | | 2017 | 1,614,402,168.6903 | | 2016 | 1,454,216,565 | | 2015 | 1,336,589,450 | | 2014 | 1,214,877,309.0565 | | 2013 | 1,114,967,383.5732 | | 2012 | 1,025,060,990.0964 | | 2011 | 945,399,863.74138 | | 2010 | 847,102,130.8675 | | 2009 | 645,589,044 | | 2008 | 595,787,235 | | 2007 | 566,737,233 | | 2006 | 504,582,844 | | 2005 | 455,039,519 | | 2004 | 419,011,482 | | 2003 | 343,053,521 | | 2002 | 330,192,684 | | 2001 | 325,063,865 | | 2000 | 301,159,940 | | 1999 | 282,236,400 | | 1998 | 278,281,800 | | 1997 | 281,040,200 | | 1996 | 271,594,400 | | 1995 | 263,510,000 | | 1994 | 245,481,800 | | 1993 | 230,362,100 | | 1992 | 253,756,200 | | 1991 | 289,646,900 | | 1990 | 161,343,400 | | 1989 | 152,011,200 | | 1988 | 151,808,700 | | 1987 | 143,569,800 | | 1986 | 134,923,500 | | 1985 | 127,396,600 | | 1984 | 121,503,300 | | 1983 | 114,395,100 | | 1982 | 110,133,100 | | 1981 | 105,905,700 | | 1980 | 100,059,900 | | 1979 | 93,717,300 | | 1978 | 83,687,900 | | 1977 | 75,096,600 | | 1976 | 68,765,900 | | 1975 | 60,651,900 | | 1974 | 52,945,800 |
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