Year | Value | 2022 | 306,993 | 2021 | 311,623 | 2020 | 315,631 | 2019 | 322,458 | 2018 | 324,282 | 2017 | 322,823 | 2016 | 325,536 | 2015 | 326,479 | 2014 | 325,803 | 2013 | 325,159 | 2012 | 324,380 | 2011 | 324,167 | 2010 | 325,487 | 2009 | 327,194 | 2008 | 328,378 | 2007 | 328,880 | 2006 | 328,009 | 2005 | 325,430 | 2004 | 321,380 | 2003 | 315,881 | 2002 | 309,455 | 2001 | 303,064 | 2000 | 297,689 | 1999 | 294,176 | 1998 | 292,355 | 1997 | 291,676 | 1996 | 291,518 | 1995 | 291,024 | 1994 | 289,960 | 1993 | 288,847 | 1992 | 287,930 | 1991 | 287,996 | 1990 | 290,076 | 1989 | 293,858 | 1988 | 297,900 | 1987 | 301,067 | 1986 | 302,898 | 1985 | 303,211 | 1984 | 300,650 | 1983 | 295,062 | 1982 | 287,506 | 1981 | 278,261 | 1980 | 268,191 | 1979 | 259,192 | 1978 | 251,012 | 1977 | 242,603 | 1976 | 234,484 | 1975 | 226,093 | 1974 | 216,687 | 1973 | 207,622 | 1972 | 200,101 | 1971 | 193,078 | 1970 | 186,324 | 1969 | 181,535 | 1968 | 178,244 | 1967 | 174,828 | 1966 | 171,446 | 1965 | 168,126 | 1964 | 164,827 | 1963 | 161,329 | 1962 | 157,720 | 1961 | 154,381 | 1960 | 151,275 |
|