Year | Value | 2022 | 237,774 | 2021 | 251,926 | 2020 | 253,021 | 2019 | 257,174 | 2018 | 261,697 | 2017 | 265,115 | 2016 | 270,272 | 2015 | 271,571 | 2014 | 264,398 | 2013 | 254,415 | 2012 | 245,155 | 2011 | 235,128 | 2010 | 226,243 | 2009 | 221,677 | 2008 | 219,763 | 2007 | 219,555 | 2006 | 221,771 | 2005 | 226,515 | 2004 | 233,178 | 2003 | 239,957 | 2002 | 244,526 | 2001 | 249,257 | 2000 | 250,687 | 1999 | 246,502 | 1998 | 242,238 | 1997 | 239,705 | 1996 | 238,860 | 1995 | 238,918 | 1994 | 239,500 | 1993 | 239,274 | 1992 | 238,434 | 1991 | 237,714 | 1990 | 236,097 | 1989 | 232,823 | 1988 | 223,982 | 1987 | 210,419 | 1986 | 196,822 | 1985 | 185,882 | 1984 | 181,822 | 1983 | 185,054 | 1982 | 191,032 | 1981 | 196,919 | 1980 | 202,507 | 1979 | 205,414 | 1978 | 205,438 | 1977 | 205,034 | 1976 | 203,357 | 1975 | 199,964 | 1974 | 195,648 | 1973 | 190,656 | 1972 | 185,700 | 1971 | 181,133 | 1970 | 176,216 | 1969 | 171,231 | 1968 | 166,581 | 1967 | 161,798 | 1966 | 156,658 | 1965 | 151,275 | 1964 | 145,291 | 1963 | 138,813 | 1962 | 132,676 | 1961 | 126,833 | 1960 | 121,633 |
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