Year | Value | 2022 | 294,696 | 2021 | 299,034 | 2020 | 303,469 | 2019 | 308,230 | 2018 | 312,101 | 2017 | 313,860 | 2016 | 317,692 | 2015 | 323,415 | 2014 | 326,392 | 2013 | 328,009 | 2012 | 330,462 | 2011 | 340,953 | 2010 | 346,247 | 2009 | 339,950 | 2008 | 334,114 | 2007 | 327,310 | 2006 | 319,959 | 2005 | 310,183 | 2004 | 297,556 | 2003 | 285,237 | 2002 | 275,069 | 2001 | 267,750 | 2000 | 263,785 | 1999 | 263,997 | 1998 | 266,906 | 1997 | 270,515 | 1996 | 274,748 | 1995 | 279,486 | 1994 | 284,540 | 1993 | 289,377 | 1992 | 293,348 | 1991 | 296,050 | 1990 | 297,233 | 1989 | 296,586 | 1988 | 293,983 | 1987 | 290,144 | 1986 | 285,930 | 1985 | 282,051 | 1984 | 279,395 | 1983 | 275,104 | 1982 | 268,135 | 1981 | 260,683 | 1980 | 252,429 | 1979 | 243,005 | 1978 | 233,047 | 1977 | 222,876 | 1976 | 213,175 | 1975 | 205,035 | 1974 | 198,884 | 1973 | 198,154 | 1972 | 199,841 | 1971 | 199,126 | 1970 | 197,783 | 1969 | 195,550 | 1968 | 191,040 | 1967 | 183,673 | 1966 | 173,790 | 1965 | 162,824 | 1964 | 153,382 | 1963 | 145,247 | 1962 | 137,196 | 1961 | 129,768 | 1960 | 123,026 |
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