Year | Value | 2022 | 342,198 | 2021 | 343,500 | 2020 | 344,391 | 2019 | 344,979 | 2018 | 345,186 | 2017 | 344,889 | 2016 | 344,089 | 2015 | 342,827 | 2014 | 341,179 | 2013 | 339,222 | 2012 | 337,064 | 2011 | 334,842 | 2010 | 332,698 | 2009 | 330,982 | 2008 | 330,034 | 2007 | 329,901 | 2006 | 330,547 | 2005 | 331,963 | 2004 | 333,867 | 2003 | 336,005 | 2002 | 338,468 | 2001 | 341,380 | 2000 | 344,501 | 1999 | 347,494 | 1998 | 350,623 | 1997 | 353,378 | 1996 | 355,078 | 1995 | 355,978 | 1994 | 356,075 | 1993 | 355,263 | 1992 | 353,625 | 1991 | 351,306 | 1990 | 348,608 | 1989 | 345,704 | 1988 | 342,551 | 1987 | 339,287 | 1986 | 335,752 | 1985 | 331,651 | 1984 | 327,051 | 1983 | 321,950 | 1982 | 316,341 | 1981 | 310,462 | 1980 | 304,403 | 1979 | 298,174 | 1978 | 291,770 | 1977 | 284,760 | 1976 | 277,131 | 1975 | 269,175 | 1974 | 260,951 | 1973 | 252,584 | 1972 | 244,829 | 1971 | 237,195 | 1970 | 229,284 | 1969 | 221,943 | 1968 | 215,195 | 1967 | 208,974 | 1966 | 203,288 | 1965 | 198,021 | 1964 | 193,006 | 1963 | 188,150 | 1962 | 183,397 | 1961 | 178,731 | 1960 | 174,171 |
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