Year | Value | 2022 | 546,542 | 2021 | 548,261 | 2020 | 549,275 | 2019 | 549,203 | 2018 | 547,131 | 2017 | 542,447 | 2016 | 535,655 | 2015 | 527,364 | 2014 | 518,088 | 2013 | 508,721 | 2012 | 499,563 | 2011 | 490,091 | 2010 | 480,121 | 2009 | 469,679 | 2008 | 458,906 | 2007 | 448,385 | 2006 | 438,594 | 2005 | 429,553 | 2004 | 421,204 | 2003 | 413,657 | 2002 | 406,576 | 2001 | 399,465 | 2000 | 392,094 | 1999 | 384,200 | 1998 | 375,531 | 1997 | 365,838 | 1996 | 355,223 | 1995 | 343,884 | 1994 | 331,682 | 1993 | 318,975 | 1992 | 306,246 | 1991 | 293,358 | 1990 | 280,378 | 1989 | 267,877 | 1988 | 256,057 | 1987 | 246,017 | 1986 | 237,947 | 1985 | 230,822 | 1984 | 224,461 | 1983 | 218,604 | 1982 | 213,255 | 1981 | 208,297 | 1980 | 203,517 | 1979 | 198,958 | 1978 | 194,681 | 1977 | 190,562 | 1976 | 186,485 | 1975 | 182,376 | 1974 | 177,482 | 1973 | 171,805 | 1972 | 166,101 | 1971 | 160,454 | 1970 | 154,957 | 1969 | 149,268 | 1968 | 143,289 | 1967 | 137,160 | 1966 | 130,645 | 1965 | 123,854 | 1964 | 117,418 | 1963 | 111,528 | 1962 | 106,163 | 1961 | 101,687 | 1960 | 98,060 |
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