| Year | Value | | 2023 | 1,266,200,230 | | 2022 | 1,261,847,494 | | 2021 | 1,249,945,908 | | 2020 | 1,233,004,666 | | 2019 | 1,248,473,343 | | 2018 | 1,243,088,391 | | 2017 | 1,237,310,906 | | 2016 | 1,235,387,502 | | 2015 | 1,231,574,481 | | 2014 | 1,226,046,507 | | 2013 | 1,218,922,038 | | 2012 | 1,215,055,746 | | 2011 | 1,208,575,750 | | 2010 | 1,196,632,867 | | 2009 | 1,192,488,990 | | 2008 | 1,188,466,713 | | 2007 | 1,182,389,222 | | 2006 | 1,170,732,333 | | 2005 | 1,160,368,289 | | 2004 | 1,149,121,462 | | 2003 | 1,136,799,075 | | 2002 | 1,125,196,158 | | 2001 | 1,114,008,802 | | 2000 | 1,101,378,897 | | 1999 | 1,085,522,027 | | 1998 | 1,070,323,979 | | 1997 | 1,053,960,042 | | 1996 | 1,037,292,685 | | 1995 | 1,020,487,630 | | 1994 | 1,004,628,759 | | 1993 | 987,901,906 | | 1992 | 974,666,716 | | 1991 | 959,392,259 |
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