| Year | Value | | 2023 | 74,913,612 | | 2022 | 73,862,460 | | 2021 | 73,234,222 | | 2020 | 70,941,233 | | 2019 | 70,248,864 | | 2018 | 68,748,318 | | 2017 | 67,164,738 | | 2016 | 63,166,277 | | 2015 | 62,009,866 | | 2014 | 60,904,130 | | 2013 | 59,781,774 | | 2012 | 58,662,413 | | 2011 | 57,602,724 | | 2010 | 56,625,232 | | 2009 | 55,755,782 | | 2008 | 55,151,453 | | 2007 | 54,599,225 | | 2006 | 53,950,191 | | 2005 | 53,076,512 | | 2004 | 51,957,839 | | 2003 | 50,792,730 | | 2002 | 49,615,035 | | 2001 | 48,398,439 | | 2000 | 47,154,102 | | 1999 | 45,860,569 | | 1998 | 44,578,242 | | 1997 | 43,338,852 | | 1996 | 42,164,841 | | 1995 | 41,043,547 | | 1994 | 39,850,324 | | 1993 | 38,690,717 | | 1992 | 37,587,038 | | 1991 | 36,555,318 |
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