Year | Value | 2022 | 328,263 | 2021 | 342,908 | 2020 | 354,765 | 2019 | 360,499 | 2018 | 359,045 | 2017 | 352,001 | 2016 | 340,584 | 2015 | 327,330 | 2014 | 314,292 | 2013 | 302,290 | 2012 | 292,430 | 2011 | 285,144 | 2010 | 280,051 | 2009 | 276,462 | 2008 | 273,045 | 2007 | 270,121 | 2006 | 268,156 | 2005 | 267,796 | 2004 | 270,621 | 2003 | 276,033 | 2002 | 282,095 | 2001 | 288,066 | 2000 | 291,851 | 1999 | 292,142 | 1998 | 292,401 | 1997 | 295,407 | 1996 | 299,926 | 1995 | 305,441 | 1994 | 311,313 | 1993 | 313,557 | 1992 | 309,761 | 1991 | 301,904 | 1990 | 292,237 | 1989 | 282,264 | 1988 | 275,442 | 1987 | 273,457 | 1986 | 274,317 | 1985 | 276,371 | 1984 | 277,954 | 1983 | 279,516 | 1982 | 281,266 | 1981 | 282,363 | 1980 | 284,846 | 1979 | 290,610 | 1978 | 298,580 | 1977 | 307,140 | 1976 | 316,505 | 1975 | 324,863 | 1974 | 329,868 | 1973 | 330,373 | 1972 | 325,126 | 1971 | 312,719 | 1970 | 294,465 | 1969 | 275,608 | 1968 | 259,363 | 1967 | 246,445 | 1966 | 237,921 | 1965 | 231,987 | 1964 | 225,576 | 1963 | 219,642 | 1962 | 216,651 | 1961 | 216,094 | 1960 | 217,789 |
|