Year | Value | 2022 | 313,313 | 2021 | 307,888 | 2020 | 301,750 | 2019 | 295,142 | 2018 | 288,477 | 2017 | 282,052 | 2016 | 276,014 | 2015 | 270,219 | 2014 | 263,963 | 2013 | 256,095 | 2012 | 247,703 | 2011 | 271,099 | 2010 | 300,487 | 2009 | 304,814 | 2008 | 309,034 | 2007 | 312,844 | 2006 | 316,047 | 2005 | 316,592 | 2004 | 313,592 | 2003 | 307,953 | 2002 | 300,409 | 2001 | 291,458 | 2000 | 281,129 | 1999 | 274,907 | 1998 | 273,427 | 1997 | 271,592 | 1996 | 268,701 | 1995 | 264,251 | 1994 | 257,811 | 1993 | 250,039 | 1992 | 241,335 | 1991 | 232,488 | 1990 | 224,705 | 1989 | 218,203 | 1988 | 213,299 | 1987 | 210,641 | 1986 | 209,499 | 1985 | 208,277 | 1984 | 205,707 | 1983 | 200,069 | 1982 | 190,770 | 1981 | 178,405 | 1980 | 163,695 | 1979 | 147,923 | 1978 | 132,731 | 1977 | 119,043 | 1976 | 106,914 | 1975 | 96,322 | 1974 | 87,400 | 1973 | 79,710 | 1972 | 74,419 | 1971 | 72,110 | 1970 | 71,166 | 1969 | 71,067 | 1968 | 71,156 | 1967 | 71,313 | 1966 | 71,845 | 1965 | 72,118 | 1964 | 71,173 | 1963 | 69,701 | 1962 | 68,409 | 1961 | 66,888 | 1960 | 65,310 |
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