| Year | Value | | 2022 | 1,686,442,871 | | 2021 | 1,644,082,657 | | 2020 | 1,601,224,986 | | 2019 | 1,595,001,421 | | 2018 | 1,570,880,225 | | 2017 | 1,540,756,262 | | 2016 | 1,516,879,000 | | 2015 | 1,489,848,258.01 | | 2014 | 1,472,334,117 | | 2013 | 1,445,975,626 | | 2012 | 1,412,427,128 | | 2011 | 1,367,828,242 | | 2010 | 1,313,588,702 | | 2009 | 1,285,233,371 | | 2008 | 1,253,377,845 | | 2007 | 1,187,184,179 | | 2006 | 1,078,695,366 | | 2005 | 973,051,912 | | 2004 | 866,050,092 | | 2003 | 770,452,081 | | 2002 | 696,373,330 | | 2001 | 630,317,657 | | 2000 | 527,123,864 | | 1999 | 372,803,396 | | 1998 | 252,024,886 | | 1997 | 174,750,900 | | 1996 | 122,531,294 | | 1995 | 77,802,847 | | 1994 | 48,721,918 | | 1993 | 30,567,965 | | 1992 | 21,285,090 | | 1991 | 15,176,159 | | 1990 | 10,599,076 | | 1989 | 7,014,331 | | 1988 | 4,158,634 | | 1987 | 2,449,186 | | 1986 | 1,403,211 | | 1985 | 736,224 | | 1984 | 311,566 | | 1983 | 145,291 | | 1982 | 99,179 | | 1981 | 63,585 | | 1980 | 23,482 |
|