| Year | Value | | 2023 | 1,514,552 | | 2022 | 1,540,646 | | 2021 | 1,540,778 | | 2020 | 1,449,612 | | 2019 | 1,475,239 | | 2018 | 1,469,454 | | 2017 | 1,464,378 | | 2016 | 1,443,816 | | 2015 | 1,385,941 | | 2014 | 1,403,648 | | 2013 | 1,389,235 | | 2012 | 1,360,294 | | 2011 | 1,352,983 | | 2010 | 1,365,780 | | 2009 | 1,412,554 | | 2008 | 1,468,864 | | 2007 | 1,488,679 | | 2006 | 1,470,237 | | 2005 | 1,479,528 | | 2004 | 1,490,809 | | 2003 | 1,503,853 | | 2002 | 1,512,568 | | 2001 | 1,519,681 | | 2000 | 1,527,485 | | 1999 | 1,534,822 | | 1998 | 1,522,687 | | 1997 | 1,528,652 | | 1996 | 1,541,624 | | 1995 | 1,553,291 | | 1994 | 1,583,694 | | 1993 | 1,583,101 | | 1992 | 1,572,518 | | 1991 | 1,561,580 |
|