Year | Value | 2022 | 586,688 | 2021 | 572,467 | 2020 | 561,338 | 2019 | 550,401 | 2018 | 540,046 | 2017 | 532,721 | 2016 | 526,486 | 2015 | 521,463 | 2014 | 519,886 | 2013 | 522,641 | 2012 | 530,464 | 2011 | 544,314 | 2010 | 544,914 | 2009 | 529,395 | 2008 | 510,481 | 2007 | 481,620 | 2006 | 442,729 | 2005 | 417,763 | 2004 | 407,038 | 2003 | 393,532 | 2002 | 382,174 | 2001 | 373,057 | 2000 | 363,717 | 1999 | 354,370 | 1998 | 346,407 | 1997 | 341,589 | 1996 | 339,503 | 1995 | 338,423 | 1994 | 337,425 | 1993 | 335,457 | 1992 | 331,868 | 1991 | 327,105 | 1990 | 321,944 | 1989 | 317,825 | 1988 | 316,911 | 1987 | 316,978 | 1986 | 317,309 | 1985 | 318,850 | 1984 | 316,334 | 1983 | 306,926 | 1982 | 297,380 | 1981 | 289,233 | 1980 | 279,132 | 1979 | 274,307 | 1978 | 276,929 | 1977 | 279,192 | 1976 | 278,800 | 1975 | 276,980 | 1974 | 274,675 | 1973 | 271,758 | 1972 | 269,060 | 1971 | 267,347 | 1970 | 266,023 | 1969 | 263,548 | 1968 | 260,345 | 1967 | 257,342 | 1966 | 254,146 | 1965 | 249,407 | 1964 | 243,551 | 1963 | 238,146 | 1962 | 232,918 | 1961 | 228,228 | 1960 | 224,939 |
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