Year | Value | 2022 | 186,712 | 2021 | 187,502 | 2020 | 188,994 | 2019 | 189,646 | 2018 | 189,572 | 2017 | 188,305 | 2016 | 185,635 | 2015 | 181,994 | 2014 | 176,856 | 2013 | 171,395 | 2012 | 166,606 | 2011 | 161,598 | 2010 | 157,290 | 2009 | 154,672 | 2008 | 151,763 | 2007 | 147,657 | 2006 | 145,096 | 2005 | 145,403 | 2004 | 147,706 | 2003 | 151,630 | 2002 | 156,784 | 2001 | 162,563 | 2000 | 166,988 | 1999 | 170,260 | 1998 | 173,097 | 1997 | 174,461 | 1996 | 175,245 | 1995 | 176,279 | 1994 | 176,237 | 1993 | 174,335 | 1992 | 171,733 | 1991 | 168,939 | 1990 | 166,264 | 1989 | 164,491 | 1988 | 162,917 | 1987 | 161,021 | 1986 | 159,867 | 1985 | 159,718 | 1984 | 159,330 | 1983 | 158,772 | 1982 | 158,297 | 1981 | 157,095 | 1980 | 155,860 | 1979 | 155,701 | 1978 | 156,436 | 1977 | 157,930 | 1976 | 160,968 | 1975 | 163,128 | 1974 | 162,613 | 1973 | 159,264 | 1972 | 152,166 | 1971 | 141,090 | 1970 | 130,200 | 1969 | 121,688 | 1968 | 114,502 | 1967 | 109,517 | 1966 | 106,666 | 1965 | 104,241 | 1964 | 101,482 | 1963 | 99,627 | 1962 | 99,117 | 1961 | 99,952 | 1960 | 102,418 |
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