Year | Value | 2022 | 172,170 | 2021 | 167,794 | 2020 | 165,692 | 2019 | 166,230 | 2018 | 168,443 | 2017 | 170,941 | 2016 | 173,747 | 2015 | 177,644 | 2014 | 181,600 | 2013 | 185,008 | 2012 | 189,153 | 2011 | 193,519 | 2010 | 195,065 | 2009 | 194,852 | 2008 | 195,388 | 2007 | 197,150 | 2006 | 201,603 | 2005 | 208,114 | 2004 | 214,336 | 2003 | 218,833 | 2002 | 219,350 | 2001 | 214,960 | 2000 | 208,858 | 1999 | 203,039 | 1998 | 197,531 | 1997 | 193,706 | 1996 | 191,706 | 1995 | 190,254 | 1994 | 189,416 | 1993 | 189,538 | 1992 | 189,505 | 1991 | 188,726 | 1990 | 188,322 | 1989 | 189,053 | 1988 | 190,955 | 1987 | 195,265 | 1986 | 202,275 | 1985 | 209,388 | 1984 | 214,557 | 1983 | 215,896 | 1982 | 212,063 | 1981 | 202,798 | 1980 | 190,457 | 1979 | 178,688 | 1978 | 168,964 | 1977 | 161,157 | 1976 | 155,731 | 1975 | 152,306 | 1974 | 149,078 | 1973 | 145,853 | 1972 | 142,987 | 1971 | 140,930 | 1970 | 139,427 | 1969 | 138,221 | 1968 | 138,321 | 1967 | 139,356 | 1966 | 140,377 | 1965 | 141,761 | 1964 | 143,891 | 1963 | 146,103 | 1962 | 147,516 | 1961 | 149,819 | 1960 | 153,520 |
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