Year | Value | 2022 | 389,449 | 2021 | 384,338 | 2020 | 376,968 | 2019 | 371,145 | 2018 | 366,936 | 2017 | 364,036 | 2016 | 361,701 | 2015 | 361,851 | 2014 | 365,492 | 2013 | 370,341 | 2012 | 374,085 | 2011 | 376,675 | 2010 | 376,364 | 2009 | 372,103 | 2008 | 366,870 | 2007 | 362,212 | 2006 | 356,616 | 2005 | 350,481 | 2004 | 345,449 | 2003 | 340,509 | 2002 | 335,314 | 2001 | 331,795 | 2000 | 327,981 | 1999 | 323,592 | 1998 | 321,551 | 1997 | 317,656 | 1996 | 309,977 | 1995 | 303,382 | 1994 | 297,079 | 1993 | 288,906 | 1992 | 281,846 | 1991 | 275,527 | 1990 | 268,211 | 1989 | 263,890 | 1988 | 263,600 | 1987 | 265,305 | 1986 | 269,738 | 1985 | 274,972 | 1984 | 276,777 | 1983 | 276,474 | 1982 | 276,983 | 1981 | 277,432 | 1980 | 276,572 | 1979 | 274,619 | 1978 | 272,803 | 1977 | 269,950 | 1976 | 267,461 | 1975 | 260,245 | 1974 | 250,846 | 1973 | 246,739 | 1972 | 245,326 | 1971 | 244,783 | 1970 | 245,708 | 1969 | 243,912 | 1968 | 237,882 | 1967 | 232,518 | 1966 | 228,729 | 1965 | 224,823 | 1964 | 226,446 | 1963 | 233,408 | 1962 | 238,743 | 1961 | 242,537 | 1960 | 246,132 |
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