| Year | Value | | 2023 | 1,440,519,117 | | 2022 | 1,437,976,579 | | 2021 | 1,422,746,047 | | 2020 | 1,389,343,645 | | 2019 | 1,419,402,856 | | 2018 | 1,411,339,757 | | 2017 | 1,403,955,029 | | 2016 | 1,397,702,514 | | 2015 | 1,391,020,082 | | 2014 | 1,381,284,516 | | 2013 | 1,373,772,320 | | 2012 | 1,368,849,094 | | 2011 | 1,357,376,636 | | 2010 | 1,343,320,202 | | 2009 | 1,340,105,802 | | 2008 | 1,333,109,112 | | 2007 | 1,324,722,880 | | 2006 | 1,311,311,075 | | 2005 | 1,298,883,909 | | 2004 | 1,284,403,072 | | 2003 | 1,268,099,739 | | 2002 | 1,252,862,648 | | 2001 | 1,237,494,291 | | 2000 | 1,223,653,107 | | 1999 | 1,206,176,913 | | 1998 | 1,184,270,094 | | 1997 | 1,165,257,938 | | 1996 | 1,146,108,892 | | 1995 | 1,130,892,228 | | 1994 | 1,113,691,238 | | 1993 | 1,096,278,477 | | 1992 | 1,084,255,416 | | 1991 | 1,068,153,218 |
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