| Year | Value | | 2023 | 3,624,639,024 | | 2022 | 3,552,899,030 | | 2021 | 3,502,413,323 | | 2020 | 3,426,310,558 | | 2019 | 3,457,381,946 | | 2018 | 3,420,463,689 | | 2017 | 3,385,363,615 | | 2016 | 3,351,313,205 | | 2015 | 3,314,879,750 | | 2014 | 3,276,871,076 | | 2013 | 3,242,632,810 | | 2012 | 3,209,575,257 | | 2011 | 3,175,158,506 | | 2010 | 3,139,809,239 | | 2009 | 3,107,267,013 | | 2008 | 3,070,767,559 | | 2007 | 3,032,160,535 | | 2006 | 2,987,194,707 | | 2005 | 2,942,279,321 | | 2004 | 2,899,107,062 | | 2003 | 2,856,516,676 | | 2002 | 2,815,959,618 | | 2001 | 2,777,326,876 | | 2000 | 2,739,538,490 | | 1999 | 2,690,173,987 | | 1998 | 2,635,358,659 | | 1997 | 2,585,790,668 | | 1996 | 2,535,135,216 | | 1995 | 2,489,498,722 | | 1994 | 2,445,117,984 | | 1993 | 2,402,165,336 | | 1992 | 2,367,558,929 | | 1991 | 2,328,130,469 |
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