| Year | Value | | 2022 | 1,780,613,000 | | 2021 | 1,733,006,000 | | 2020 | 1,718,411,000 | | 2019 | 1,746,238,000 | | 2018 | 1,649,301,700 | | 2017 | 1,469,882,500 | | 2016 | 1,364,934,000 | | 2015 | 1,291,984,200 | | 2014 | 1,286,093,000 | | 2013 | 1,229,113,000 | | 2012 | 1,112,155,000 | | 2011 | 986,253,000 | | 2010 | 859,003,000 | | 2009 | 747,214,000 | | 2008 | 641,245,000 | | 2007 | 547,306,000 | | 2006 | 461,058,000 | | 2005 | 393,406,000 | | 2004 | 334,824,000 | | 2003 | 269,953,000 | | 2002 | 206,005,000 | | 2001 | 144,820,000 | | 2000 | 85,260,000 | | 1999 | 43,296,000 | | 1998 | 23,863,000 | | 1997 | 13,233,000 | | 1996 | 6,853,000 | | 1995 | 3,629,000 | | 1994 | 1,568,000 | | 1993 | 638,000 | | 1992 | 176,943 | | 1991 | 47,544 | | 1990 | 18,319 | | 1989 | 9,805 | | 1988 | 3,227 | | 1987 | 700 |
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