Year | Value | 2022 | 312,389 | 2021 | 309,959 | 2020 | 308,450 | 2019 | 305,016 | 2018 | 299,614 | 2017 | 292,824 | 2016 | 285,004 | 2015 | 277,525 | 2014 | 273,019 | 2013 | 272,462 | 2012 | 276,061 | 2011 | 283,604 | 2010 | 292,892 | 2009 | 304,619 | 2008 | 319,272 | 2007 | 333,084 | 2006 | 343,896 | 2005 | 352,393 | 2004 | 357,823 | 2003 | 360,075 | 2002 | 360,551 | 2001 | 359,194 | 2000 | 355,545 | 1999 | 349,417 | 1998 | 340,838 | 1997 | 331,431 | 1996 | 322,071 | 1995 | 312,336 | 1994 | 301,943 | 1993 | 290,582 | 1992 | 278,290 | 1991 | 265,571 | 1990 | 255,939 | 1989 | 251,907 | 1988 | 253,074 | 1987 | 258,072 | 1986 | 260,271 | 1985 | 253,654 | 1984 | 247,595 | 1983 | 245,860 | 1982 | 242,409 | 1981 | 246,415 | 1980 | 265,362 | 1979 | 284,329 | 1978 | 287,177 | 1977 | 278,498 | 1976 | 263,031 | 1975 | 241,487 | 1974 | 219,787 | 1973 | 208,217 | 1972 | 208,102 | 1971 | 211,644 | 1970 | 217,771 | 1969 | 224,847 | 1968 | 230,807 | 1967 | 233,301 | 1966 | 231,245 | 1965 | 226,841 | 1964 | 221,533 | 1963 | 216,090 | 1962 | 212,144 | 1961 | 210,851 | 1960 | 209,681 |
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