Year | Value | 2023 | 55,516,723 | 2022 | 54,102,346 | 2021 | 53,047,161 | 2020 | 53,640,268 | 2019 | 53,753,317 | 2018 | 52,271,118 | 2017 | 50,450,779 | 2016 | 48,846,095 | 2015 | 48,031,872 | 2014 | 47,249,683 | 2013 | 46,650,505 | 2012 | 46,666,995 | 2011 | 45,519,461 | 2010 | 44,827,720 | 2009 | 43,572,124 | 2008 | 42,983,004 | 2007 | 41,867,176 | 2006 | 38,028,981 | 2005 | 37,471,158 | 2004 | 37,792,213 | 2003 | 37,637,531 | 2002 | 37,128,728 | 2001 | 37,926,862 | 2000 | 38,466,348 | 1999 | 37,320,911 | 1998 | 36,469,147 | 1997 | 34,781,582 | 1996 | 34,569,096 | 1995 | 33,769,469 | 1994 | 32,969,947 | 1993 | 31,383,397 | 1992 | 31,209,548 | 1991 | 29,933,144 |
|