Year | Value | 2022 | 374,867 | 2021 | 372,164 | 2020 | 385,679 | 2019 | 397,262 | 2018 | 412,421 | 2017 | 428,955 | 2016 | 446,475 | 2015 | 463,198 | 2014 | 475,140 | 2013 | 480,396 | 2012 | 476,643 | 2011 | 463,316 | 2010 | 443,575 | 2009 | 419,100 | 2008 | 392,741 | 2007 | 371,289 | 2006 | 358,384 | 2005 | 352,296 | 2004 | 352,430 | 2003 | 356,060 | 2002 | 356,166 | 2001 | 352,030 | 2000 | 345,832 | 1999 | 336,415 | 1998 | 327,982 | 1997 | 329,833 | 1996 | 340,696 | 1995 | 354,507 | 1994 | 370,050 | 1993 | 384,756 | 1992 | 395,400 | 1991 | 403,059 | 1990 | 410,908 | 1989 | 416,623 | 1988 | 420,686 | 1987 | 426,579 | 1986 | 430,940 | 1985 | 426,715 | 1984 | 417,994 | 1983 | 407,923 | 1982 | 389,705 | 1981 | 366,659 | 1980 | 350,604 | 1979 | 336,059 | 1978 | 316,478 | 1977 | 299,665 | 1976 | 286,825 | 1975 | 276,282 | 1974 | 271,214 | 1973 | 272,501 | 1972 | 278,433 | 1971 | 287,872 | 1970 | 300,560 | 1969 | 312,489 | 1968 | 319,963 | 1967 | 324,330 | 1966 | 326,506 | 1965 | 327,846 | 1964 | 329,853 | 1963 | 334,654 | 1962 | 340,987 | 1961 | 346,513 | 1960 | 349,555 |
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