| Year | Value | | 2022 | 1,581,204,858 | | 2021 | 1,544,826,479 | | 2020 | 1,512,800,321 | | 2019 | 1,510,560,372 | | 2018 | 1,485,294,601 | | 2017 | 1,463,282,984 | | 2016 | 1,457,222,625 | | 2015 | 1,440,354,760.01 | | 2014 | 1,429,385,410 | | 2013 | 1,404,819,001 | | 2012 | 1,376,014,088 | | 2011 | 1,340,041,164 | | 2010 | 1,287,944,825 | | 2009 | 1,257,213,440 | | 2008 | 1,211,270,112 | | 2007 | 1,146,864,992 | | 2006 | 1,039,667,114 | | 2005 | 943,774,867 | | 2004 | 853,635,534 | | 2003 | 770,635,715 | | 2002 | 698,324,559 | | 2001 | 632,119,010 | | 2000 | 531,128,823 | | 1999 | 378,309,550 | | 1998 | 255,994,047 | | 1997 | 176,786,101 | | 1996 | 124,255,459 | | 1995 | 79,124,040 | | 1994 | 49,719,626 | | 1993 | 31,450,041 | | 1992 | 21,890,432 | | 1991 | 15,610,157 | | 1990 | 10,884,118 | | 1989 | 7,211,957 | | 1988 | 4,254,183 | | 1987 | 2,506,944 | | 1986 | 1,433,602 | | 1985 | 748,600 | | 1984 | 317,502 | | 1983 | 148,855 | | 1982 | 101,509 | | 1981 | 63,585 | | 1980 | 23,482 |
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