| Year | Value | | 2023 | 382,330 | | 2022 | 371,572 | | 2021 | 357,421 | | 2020 | 347,558 | | 2019 | 341,348 | | 2018 | 331,935 | | 2017 | 323,217 | | 2016 | 314,911 | | 2015 | 306,843 | | 2014 | 298,221 | | 2013 | 289,781 | | 2012 | 282,266 | | 2011 | 274,476 | | 2010 | 267,773 | | 2009 | 261,602 | | 2008 | 254,981 | | 2007 | 249,090 | | 2006 | 243,133 | | 2005 | 237,304 | | 2004 | 231,621 | | 2003 | 226,125 | | 2002 | 220,667 | | 2001 | 214,134 | | 2000 | 206,968 | | 1999 | 198,722 | | 1998 | 192,058 | | 1997 | 185,679 | | 1996 | 179,165 | | 1995 | 173,046 | | 1994 | 167,913 | | 1993 | 162,730 | | 1992 | 157,301 | | 1991 | 152,794 |
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