| Year | Value | | 2022 | 76,807,000 | | 2021 | 75,304,000 | | 2020 | 72,751,000 | | 2019 | 72,040,000 | | 2018 | 70,422,000 | | 2017 | 69,018,000 | | 2016 | 67,571,000 | | 2015 | 66,681,000 | | 2014 | 65,425,000 | | 2013 | 63,324,000 | | 2012 | 62,260,000 | | 2011 | 59,816,000 | | 2010 | 57,785,000 | | 2009 | 57,918,000 | | 2008 | 57,972,000 | | 2007 | 55,358,100 | | 2006 | 51,662,000 | | 2005 | 48,088,000 | | 2004 | 44,544,000 | | 2003 | 41,702,000 | | 2002 | 38,585,300 | | 2001 | 36,997,400 | | 2000 | 29,052,360 | | 1999 | 21,433,500 | | 1998 | 11,210,100 | | 1997 | 5,817,300 | | 1996 | 2,462,700 | | 1995 | 1,302,496 | | 1994 | 883,000 | | 1993 | 572,000 | | 1992 | 436,700 | | 1991 | 375,000 | | 1990 | 283,200 | | 1989 | 178,400 | | 1988 | 98,332 | | 1987 | 39,234 | | 1986 | 9,055 |
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