Year | Value | 2022 | 510,294 | 2021 | 501,019 | 2020 | 495,242 | 2019 | 492,134 | 2018 | 492,434 | 2017 | 497,618 | 2016 | 508,785 | 2015 | 508,451 | 2014 | 493,629 | 2013 | 476,160 | 2012 | 449,327 | 2011 | 411,802 | 2010 | 386,841 | 2009 | 375,484 | 2008 | 361,641 | 2007 | 350,476 | 2006 | 342,435 | 2005 | 334,526 | 2004 | 325,988 | 2003 | 318,097 | 2002 | 312,715 | 2001 | 309,307 | 2000 | 306,402 | 1999 | 303,869 | 1998 | 301,168 | 1997 | 297,590 | 1996 | 293,337 | 1995 | 289,061 | 1994 | 285,477 | 1993 | 284,323 | 1992 | 283,981 | 1991 | 283,595 | 1990 | 284,036 | 1989 | 281,060 | 1988 | 272,101 | 1987 | 262,678 | 1986 | 254,622 | 1985 | 245,527 | 1984 | 241,329 | 1983 | 243,626 | 1982 | 245,572 | 1981 | 244,969 | 1980 | 243,036 | 1979 | 240,526 | 1978 | 237,331 | 1977 | 234,469 | 1976 | 232,880 | 1975 | 231,633 | 1974 | 229,096 | 1973 | 226,258 | 1972 | 223,777 | 1971 | 221,268 | 1970 | 217,623 | 1969 | 212,991 | 1968 | 208,634 | 1967 | 204,669 | 1966 | 201,165 | 1965 | 198,565 | 1964 | 196,113 | 1963 | 193,926 | 1962 | 190,835 | 1961 | 186,387 | 1960 | 182,004 |
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