Year | Value | 2023 | 366,401 | 2022 | 361,498 | 2021 | 342,924 | 2020 | 340,335 | 2019 | 341,018 | 2018 | 339,910 | 2017 | 338,053 | 2016 | 334,391 | 2015 | 333,066 | 2014 | 325,960 | 2013 | 332,566 | 2012 | 334,862 | 2011 | 338,554 | 2010 | 337,237 | 2009 | 336,867 | 2008 | 338,801 | 2007 | 334,588 | 2006 | 339,489 | 2005 | 333,181 | 2004 | 331,416 | 2003 | 325,461 | 2002 | 318,949 | 2001 | 323,981 | 2000 | 327,627 | 1999 | 320,517 | 1998 | 321,580 | 1997 | 330,688 | 1996 | 330,560 | 1995 | 334,753 | 1994 | 344,984 | 1993 | 350,775 | 1992 | 364,150 | 1991 | 384,886 |
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