| Year | Value | | 2022 | 2,967,821,658 | | 2021 | 3,044,396,966 | | 2020 | 2,989,001,940 | | 2019 | 2,932,226,427 | | 2018 | 2,816,070,963 | | 2017 | 2,697,780,251 | | 2016 | 2,612,810,571 | | 2015 | 2,435,392,306 | | 2014 | 2,328,979,396 | | 2013 | 2,172,073,302 | | 2012 | 2,066,125,136 | | 2011 | 1,981,153,140 | | 2010 | 1,705,746,083 | | 2009 | 1,354,489,893 | | 2008 | 1,039,483,915 | | 2007 | 749,646,673 | | 2006 | 508,480,072 | | 2005 | 298,617,765 | | 2004 | 176,742,410 | | 2003 | 109,041,827 | | 2002 | 64,094,463 | | 2001 | 41,744,087 | | 2000 | 21,809,637 | | 1999 | 9,758,313 | | 1998 | 5,697,326 | | 1997 | 3,893,436 | | 1996 | 2,036,945 | | 1995 | 962,877 | | 1994 | 323,183 | | 1993 | 182,191 | | 1992 | 92,926 | | 1991 | 58,677 | | 1990 | 10,776 | | 1989 | 4,955 | | 1988 | 3,527 | | 1987 | 2,911 |
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