Year | Value | 2022 | 401,930 | 2021 | 396,935 | 2020 | 380,428 | 2019 | 364,282 | 2018 | 356,742 | 2017 | 355,446 | 2016 | 351,148 | 2015 | 342,740 | 2014 | 332,159 | 2013 | 320,760 | 2012 | 309,557 | 2011 | 303,413 | 2010 | 304,716 | 2009 | 311,063 | 2008 | 319,391 | 2007 | 331,320 | 2006 | 348,414 | 2005 | 369,931 | 2004 | 394,659 | 2003 | 415,911 | 2002 | 426,937 | 2001 | 427,426 | 2000 | 420,812 | 1999 | 409,184 | 1998 | 396,758 | 1997 | 389,329 | 1996 | 380,153 | 1995 | 365,678 | 1994 | 355,631 | 1993 | 349,320 | 1992 | 343,517 | 1991 | 342,295 | 1990 | 344,720 | 1989 | 345,939 | 1988 | 344,138 | 1987 | 340,548 | 1986 | 337,394 | 1985 | 335,344 | 1984 | 334,558 | 1983 | 336,421 | 1982 | 339,865 | 1981 | 344,345 | 1980 | 350,427 | 1979 | 356,856 | 1978 | 361,729 | 1977 | 364,415 | 1976 | 367,588 | 1975 | 372,062 | 1974 | 373,524 | 1973 | 374,694 | 1972 | 380,085 | 1971 | 385,459 | 1970 | 386,445 | 1969 | 383,987 | 1968 | 362,369 | 1967 | 321,729 | 1966 | 280,787 | 1965 | 248,014 | 1964 | 238,975 | 1963 | 261,522 | 1962 | 300,358 | 1961 | 337,275 | 1960 | 365,761 |
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