Year | Value | 2022 | 265,125 | 2021 | 271,706 | 2020 | 276,616 | 2019 | 279,259 | 2018 | 281,393 | 2017 | 281,355 | 2016 | 278,776 | 2015 | 275,236 | 2014 | 270,949 | 2013 | 265,939 | 2012 | 262,174 | 2011 | 259,546 | 2010 | 255,576 | 2009 | 251,351 | 2008 | 246,159 | 2007 | 240,292 | 2006 | 236,609 | 2005 | 234,778 | 2004 | 233,643 | 2003 | 233,683 | 2002 | 234,846 | 2001 | 236,933 | 2000 | 241,285 | 1999 | 248,323 | 1998 | 256,978 | 1997 | 266,300 | 1996 | 275,140 | 1995 | 282,314 | 1994 | 287,505 | 1993 | 290,701 | 1992 | 290,877 | 1991 | 284,255 | 1990 | 274,577 | 1989 | 267,440 | 1988 | 260,647 | 1987 | 254,674 | 1986 | 249,755 | 1985 | 245,685 | 1984 | 242,484 | 1983 | 239,789 | 1982 | 237,328 | 1981 | 234,948 | 1980 | 234,244 | 1979 | 235,767 | 1978 | 239,070 | 1977 | 243,534 | 1976 | 250,287 | 1975 | 257,431 | 1974 | 259,663 | 1973 | 257,865 | 1972 | 254,415 | 1971 | 249,513 | 1970 | 245,404 | 1969 | 238,739 | 1968 | 228,682 | 1967 | 219,510 | 1966 | 212,858 | 1965 | 209,510 | 1964 | 206,993 | 1963 | 204,037 | 1962 | 201,124 | 1961 | 197,897 | 1960 | 195,856 |
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