Year | Value | 2022 | 289,242 | 2021 | 290,649 | 2020 | 291,557 | 2019 | 294,858 | 2018 | 298,632 | 2017 | 302,196 | 2016 | 307,171 | 2015 | 312,753 | 2014 | 318,034 | 2013 | 321,968 | 2012 | 325,312 | 2011 | 328,188 | 2010 | 329,371 | 2009 | 329,449 | 2008 | 329,960 | 2007 | 330,757 | 2006 | 332,372 | 2005 | 335,172 | 2004 | 337,729 | 2003 | 339,169 | 2002 | 339,687 | 2001 | 338,488 | 2000 | 335,518 | 1999 | 331,323 | 1998 | 326,311 | 1997 | 321,030 | 1996 | 316,046 | 1995 | 311,902 | 1994 | 309,487 | 1993 | 308,831 | 1992 | 309,311 | 1991 | 310,835 | 1990 | 312,729 | 1989 | 314,104 | 1988 | 315,426 | 1987 | 317,392 | 1986 | 320,323 | 1985 | 324,083 | 1984 | 328,049 | 1983 | 331,022 | 1982 | 332,540 | 1981 | 333,044 | 1980 | 332,979 | 1979 | 331,322 | 1978 | 327,662 | 1977 | 322,488 | 1976 | 315,354 | 1975 | 306,547 | 1974 | 297,805 | 1973 | 289,213 | 1972 | 279,905 | 1971 | 270,190 | 1970 | 259,679 | 1969 | 248,419 | 1968 | 238,260 | 1967 | 230,425 | 1966 | 223,804 | 1965 | 217,963 | 1964 | 213,554 | 1963 | 210,040 | 1962 | 206,473 | 1961 | 202,774 | 1960 | 198,758 |
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