Year | Value | 2021 | 165,910 | 2020 | 165,950 | 2019 | 166,660 | 2018 | 166,450 | 2017 | 166,870 | 2016 | 166,590 | 2015 | 167,310 | 2014 | 167,250 | 2013 | 166,970 | 2012 | 166,640 | 2011 | 167,190 | 2010 | 167,000 | 2009 | 168,860 | 2008 | 169,210 | 2007 | 169,500 | 2006 | 169,460 | 2005 | 170,310 | 2004 | 170,130 | 2003 | 170,010 | 2002 | 169,670 | 2001 | 170,340 | 2000 | 170,680 | 1999 | 171,520 | 1998 | 173,730 | 1997 | 173,270 | 1996 | 173,370 | 1995 | 173,430 | 1994 | 173,080 | 1993 | 171,620 | 1992 | 169,510 | 1991 | 171,360 | 1990 | 180,320 | 1989 | 180,560 | 1988 | 180,970 | 1987 | 181,250 | 1986 | 182,080 | 1985 | 182,440 | 1984 | 182,840 | 1983 | 183,300 | 1982 | 183,960 | 1981 | 184,610 | 1980 | 185,190 | 1979 | 185,940 | 1978 | 186,590 | 1977 | 187,090 | 1976 | 187,580 | 1975 | 187,920 | 1974 | 188,210 | 1973 | 188,970 | 1972 | 189,490 | 1971 | 189,520 | 1970 | 190,230 | 1969 | 192,540 | 1968 | 192,850 | 1967 | 194,120 | 1966 | 195,310 | 1965 | 195,340 | 1964 | 194,580 | 1963 | 194,020 | 1962 | 193,930 | 1961 | 193,750 |
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