Year | Value | 2022 | 227,775 | 2021 | 232,561 | 2020 | 234,108 | 2019 | 233,359 | 2018 | 230,656 | 2017 | 225,437 | 2016 | 217,823 | 2015 | 209,299 | 2014 | 200,554 | 2013 | 191,737 | 2012 | 184,739 | 2011 | 180,907 | 2010 | 180,068 | 2009 | 181,632 | 2008 | 184,996 | 2007 | 188,188 | 2006 | 190,490 | 2005 | 192,370 | 2004 | 193,032 | 2003 | 193,963 | 2002 | 197,344 | 2001 | 201,716 | 2000 | 205,803 | 1999 | 209,567 | 1998 | 211,920 | 1997 | 212,613 | 1996 | 211,903 | 1995 | 209,783 | 1994 | 205,414 | 1993 | 199,473 | 1992 | 192,701 | 1991 | 183,815 | 1990 | 172,295 | 1989 | 162,056 | 1988 | 153,733 | 1987 | 145,404 | 1986 | 140,138 | 1985 | 138,729 | 1984 | 137,361 | 1983 | 134,969 | 1982 | 132,911 | 1981 | 130,620 | 1980 | 128,620 | 1979 | 127,900 | 1978 | 128,564 | 1977 | 130,899 | 1976 | 134,525 | 1975 | 137,944 | 1974 | 140,517 | 1973 | 142,373 | 1972 | 143,094 | 1971 | 142,960 | 1970 | 143,037 | 1969 | 143,602 | 1968 | 145,287 | 1967 | 147,434 | 1966 | 149,042 | 1965 | 148,530 | 1964 | 145,176 | 1963 | 133,659 | 1962 | 115,309 | 1961 | 97,711 | 1960 | 83,568 |
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