Year | Value | 2022 | 350,796 | 2021 | 360,594 | 2020 | 369,113 | 2019 | 377,738 | 2018 | 384,495 | 2017 | 387,489 | 2016 | 386,813 | 2015 | 384,286 | 2014 | 381,725 | 2013 | 381,354 | 2012 | 380,958 | 2011 | 379,744 | 2010 | 378,739 | 2009 | 378,846 | 2008 | 379,443 | 2007 | 379,344 | 2006 | 378,713 | 2005 | 377,315 | 2004 | 373,654 | 2003 | 368,734 | 2002 | 364,130 | 2001 | 357,696 | 2000 | 349,438 | 1999 | 342,165 | 1998 | 335,777 | 1997 | 329,477 | 1996 | 325,512 | 1995 | 322,934 | 1994 | 320,186 | 1993 | 319,354 | 1992 | 317,787 | 1991 | 312,023 | 1990 | 305,560 | 1989 | 298,773 | 1988 | 289,975 | 1987 | 281,838 | 1986 | 274,974 | 1985 | 268,481 | 1984 | 264,957 | 1983 | 264,882 | 1982 | 266,719 | 1981 | 270,782 | 1980 | 273,889 | 1979 | 273,459 | 1978 | 271,934 | 1977 | 271,994 | 1976 | 272,635 | 1975 | 268,489 | 1974 | 260,663 | 1973 | 258,901 | 1972 | 259,250 | 1971 | 259,821 | 1970 | 260,365 | 1969 | 262,102 | 1968 | 264,639 | 1967 | 265,487 | 1966 | 267,076 | 1965 | 269,697 | 1964 | 266,873 | 1963 | 257,732 | 1962 | 249,738 | 1961 | 242,529 | 1960 | 235,544 |
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