Year | Value | 2022 | 199,990 | 2021 | 198,416 | 2020 | 196,063 | 2019 | 192,797 | 2018 | 188,722 | 2017 | 183,617 | 2016 | 178,086 | 2015 | 172,519 | 2014 | 166,809 | 2013 | 161,706 | 2012 | 157,966 | 2011 | 155,562 | 2010 | 154,685 | 2009 | 155,845 | 2008 | 158,459 | 2007 | 161,439 | 2006 | 165,023 | 2005 | 170,098 | 2004 | 175,324 | 2003 | 179,638 | 2002 | 184,339 | 2001 | 188,676 | 2000 | 189,759 | 1999 | 188,803 | 1998 | 188,427 | 1997 | 189,283 | 1996 | 192,551 | 1995 | 197,407 | 1994 | 201,937 | 1993 | 205,381 | 1992 | 205,308 | 1991 | 200,772 | 1990 | 194,950 | 1989 | 189,903 | 1988 | 185,518 | 1987 | 182,593 | 1986 | 181,255 | 1985 | 180,600 | 1984 | 180,603 | 1983 | 181,383 | 1982 | 182,128 | 1981 | 182,107 | 1980 | 182,397 | 1979 | 183,449 | 1978 | 185,034 | 1977 | 188,828 | 1976 | 195,197 | 1975 | 201,565 | 1974 | 206,066 | 1973 | 207,098 | 1972 | 203,252 | 1971 | 194,458 | 1970 | 182,860 | 1969 | 171,633 | 1968 | 162,588 | 1967 | 155,804 | 1966 | 151,429 | 1965 | 148,726 | 1964 | 146,337 | 1963 | 143,877 | 1962 | 141,619 | 1961 | 140,215 | 1960 | 139,731 |
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