| Year | Value | | 2024 | 41,014,040 | | 2023 | 41,287,040 | | 2022 | 40,754,371 | | 2021 | 40,439,671 | | 2020 | 40,252,215 | | 2019 | 39,952,678 | | 2018 | 40,193,292 | | 2017 | 39,720,340 | | 2016 | 39,822,992 | | 2015 | 40,014,953 | | 2014 | 39,964,948 | | 2013 | 39,678,084 | | 2012 | 40,844,641 | | 2011 | 40,584,009 | | 2010 | 39,244,294 | | 2009 | 39,417,409 | | 2008 | 38,958,286 | | 2007 | 38,463,790 | | 2006 | 37,757,576 | | 2005 | 37,537,474 | | 2004 | 37,013,784 | | 2003 | 36,488,833 | | 2002 | 36,072,920 | | 2001 | 35,644,475 | | 2000 | 35,011,504 | | 1999 | 34,287,322 | | 1998 | 34,179,395 | | 1997 | 33,925,700 | | 1996 | 33,280,368 | | 1995 | 32,495,666 | | 1994 | 31,687,801 | | 1993 | 31,018,796 | | 1992 | 30,319,020 | | 1991 | 29,588,647 | | 1990 | 28,835,252 |
|