Year | Value | 2022 | 233,365 | 2021 | 240,137 | 2020 | 245,621 | 2019 | 254,053 | 2018 | 264,153 | 2017 | 274,680 | 2016 | 280,729 | 2015 | 283,242 | 2014 | 285,841 | 2013 | 284,453 | 2012 | 278,658 | 2011 | 272,835 | 2010 | 266,048 | 2009 | 253,178 | 2008 | 241,914 | 2007 | 235,638 | 2006 | 233,827 | 2005 | 235,572 | 2004 | 240,179 | 2003 | 246,684 | 2002 | 253,672 | 2001 | 259,801 | 2000 | 264,990 | 1999 | 269,037 | 1998 | 271,712 | 1997 | 273,302 | 1996 | 273,235 | 1995 | 270,975 | 1994 | 271,085 | 1993 | 265,537 | 1992 | 259,416 | 1991 | 253,273 | 1990 | 248,925 | 1989 | 244,908 | 1988 | 239,589 | 1987 | 232,731 | 1986 | 224,026 | 1985 | 212,180 | 1984 | 196,628 | 1983 | 176,656 | 1982 | 153,591 | 1981 | 131,137 | 1980 | 114,769 | 1979 | 108,634 | 1978 | 113,168 | 1977 | 126,363 | 1976 | 143,782 | 1975 | 160,319 | 1974 | 173,158 | 1973 | 180,961 | 1972 | 184,587 | 1971 | 185,488 | 1970 | 185,442 | 1969 | 186,148 | 1968 | 187,038 | 1967 | 187,918 | 1966 | 188,324 | 1965 | 186,626 | 1964 | 182,575 | 1963 | 175,152 | 1962 | 163,716 | 1961 | 146,938 | 1960 | 130,685 |
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