Year | Value | 2023 | 196,331 | 2022 | 204,777 | 2021 | 223,799 | 2020 | 228,776 | 2019 | 230,417 | 2018 | 231,442 | 2017 | 232,219 | 2016 | 232,517 | 2015 | 233,227 | 2014 | 236,466 | 2013 | 241,000 | 2012 | 246,635 | 2011 | 254,145 | 2010 | 262,195 | 2009 | 269,761 | 2008 | 274,896 | 2007 | 274,418 | 2006 | 271,169 | 2005 | 269,603 | 2004 | 269,026 | 2003 | 270,260 | 2002 | 271,450 | 2001 | 273,578 | 2000 | 274,247 | 1999 | 271,304 | 1998 | 268,780 | 1997 | 269,914 | 1996 | 275,421 | 1995 | 281,141 | 1994 | 284,121 | 1993 | 285,386 | 1992 | 289,168 | 1991 | 294,153 | 1990 | 298,727 | 1989 | 306,440 | 1988 | 313,296 | 1987 | 315,712 | 1986 | 316,311 | 1985 | 317,588 | 1984 | 322,245 | 1983 | 328,027 | 1982 | 333,226 | 1981 | 338,653 | 1980 | 341,400 | 1979 | 336,745 | 1978 | 327,253 | 1977 | 316,066 | 1976 | 303,102 | 1975 | 291,512 | 1974 | 283,389 |
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