Year | Value | 2022 | 385,462 | 2021 | 389,294 | 2020 | 389,448 | 2019 | 383,718 | 2018 | 376,367 | 2017 | 368,476 | 2016 | 361,571 | 2015 | 357,348 | 2014 | 356,373 | 2013 | 357,322 | 2012 | 359,059 | 2011 | 361,289 | 2010 | 363,370 | 2009 | 362,818 | 2008 | 359,288 | 2007 | 354,646 | 2006 | 349,375 | 2005 | 343,767 | 2004 | 339,754 | 2003 | 338,593 | 2002 | 339,446 | 2001 | 340,396 | 2000 | 338,780 | 1999 | 333,073 | 1998 | 322,845 | 1997 | 309,062 | 1996 | 295,612 | 1995 | 286,757 | 1994 | 284,195 | 1993 | 287,709 | 1992 | 295,726 | 1991 | 305,165 | 1990 | 312,594 | 1989 | 318,658 | 1988 | 324,546 | 1987 | 328,940 | 1986 | 331,819 | 1985 | 333,906 | 1984 | 335,416 | 1983 | 336,019 | 1982 | 334,927 | 1981 | 331,386 | 1980 | 324,238 | 1979 | 314,101 | 1978 | 300,591 | 1977 | 285,316 | 1976 | 269,675 | 1975 | 254,163 | 1974 | 242,061 | 1973 | 233,634 | 1972 | 227,668 | 1971 | 224,231 | 1970 | 224,324 | 1969 | 227,552 | 1968 | 232,132 | 1967 | 236,541 | 1966 | 239,927 | 1965 | 241,692 | 1964 | 241,702 | 1963 | 239,724 | 1962 | 235,971 | 1961 | 230,604 | 1960 | 224,480 |
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