Year | Value | 2023 | 243,193 | 2022 | 246,045 | 2021 | 264,950 | 2020 | 271,297 | 2019 | 276,982 | 2018 | 280,526 | 2017 | 278,020 | 2016 | 272,480 | 2015 | 268,852 | 2014 | 266,175 | 2013 | 265,442 | 2012 | 264,545 | 2011 | 259,953 | 2010 | 254,148 | 2009 | 249,253 | 2008 | 245,758 | 2007 | 247,275 | 2006 | 254,542 | 2005 | 262,226 | 2004 | 266,292 | 2003 | 267,676 | 2002 | 269,936 | 2001 | 276,283 | 2000 | 281,603 | 1999 | 283,090 | 1998 | 285,487 | 1997 | 287,095 | 1996 | 286,566 | 1995 | 286,089 | 1994 | 287,833 | 1993 | 290,826 | 1992 | 295,542 | 1991 | 301,325 | 1990 | 304,659 | 1989 | 305,213 | 1988 | 298,914 | 1987 | 286,968 | 1986 | 275,213 | 1985 | 265,237 | 1984 | 258,550 | 1983 | 255,300 | 1982 | 255,668 | 1981 | 259,226 | 1980 | 266,095 | 1979 | 276,204 | 1978 | 288,485 | 1977 | 299,486 | 1976 | 306,616 | 1975 | 310,936 | 1974 | 312,201 |
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