Year | Value | 2022 | 258,984 | 2021 | 253,427 | 2020 | 250,407 | 2019 | 249,916 | 2018 | 251,532 | 2017 | 254,965 | 2016 | 259,650 | 2015 | 265,007 | 2014 | 271,140 | 2013 | 278,005 | 2012 | 284,773 | 2011 | 290,412 | 2010 | 294,724 | 2009 | 298,381 | 2008 | 299,388 | 2007 | 297,478 | 2006 | 294,661 | 2005 | 289,811 | 2004 | 281,415 | 2003 | 271,717 | 2002 | 261,867 | 2001 | 250,907 | 2000 | 240,335 | 1999 | 231,156 | 1998 | 223,465 | 1997 | 217,113 | 1996 | 212,454 | 1995 | 208,343 | 1994 | 203,836 | 1993 | 199,592 | 1992 | 195,427 | 1991 | 191,394 | 1990 | 188,712 | 1989 | 187,522 | 1988 | 186,068 | 1987 | 183,645 | 1986 | 180,566 | 1985 | 177,039 | 1984 | 174,117 | 1983 | 172,574 | 1982 | 172,036 | 1981 | 171,427 | 1980 | 169,596 | 1979 | 166,032 | 1978 | 160,940 | 1977 | 154,653 | 1976 | 147,447 | 1975 | 139,670 | 1974 | 131,691 | 1973 | 123,840 | 1972 | 116,355 | 1971 | 109,334 | 1970 | 102,949 | 1969 | 97,167 | 1968 | 90,544 | 1967 | 82,930 | 1966 | 75,410 | 1965 | 68,043 | 1964 | 61,282 | 1963 | 56,805 | 1962 | 55,124 | 1961 | 55,410 | 1960 | 57,360 |
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