Year | Value | 2022 | 683,682 | 2021 | 664,885 | 2020 | 641,274 | 2019 | 603,442 | 2018 | 545,436 | 2017 | 476,767 | 2016 | 414,256 | 2015 | 365,092 | 2014 | 337,453 | 2013 | 343,318 | 2012 | 375,236 | 2011 | 411,005 | 2010 | 438,863 | 2009 | 458,991 | 2008 | 468,277 | 2007 | 468,030 | 2006 | 463,468 | 2005 | 457,966 | 2004 | 452,425 | 2003 | 446,537 | 2002 | 439,268 | 2001 | 431,644 | 2000 | 423,704 | 1999 | 415,825 | 1998 | 399,709 | 1997 | 383,703 | 1996 | 375,021 | 1995 | 364,261 | 1994 | 351,071 | 1993 | 332,689 | 1992 | 308,715 | 1991 | 286,455 | 1990 | 268,503 | 1989 | 251,987 | 1988 | 236,886 | 1987 | 221,640 | 1986 | 206,554 | 1985 | 193,690 | 1984 | 183,520 | 1983 | 174,925 | 1982 | 168,251 | 1981 | 162,700 | 1980 | 161,097 | 1979 | 158,757 | 1978 | 155,981 | 1977 | 158,771 | 1976 | 167,154 | 1975 | 175,637 | 1974 | 177,138 | 1973 | 176,209 | 1972 | 174,915 | 1971 | 174,377 | 1970 | 177,067 | 1969 | 178,041 | 1968 | 174,925 | 1967 | 171,724 | 1966 | 168,448 | 1965 | 165,062 | 1964 | 161,527 | 1963 | 157,982 | 1962 | 154,500 | 1961 | 151,120 | 1960 | 147,877 |
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