Year | Value | 2021 | 130,790 | 2020 | 130,490 | 2019 | 138,260 | 2018 | 134,140 | 2017 | 133,780 | 2016 | 135,210 | 2015 | 138,580 | 2014 | 138,300 | 2013 | 139,050 | 2012 | 137,330 | 2011 | 139,820 | 2010 | 141,560 | 2009 | 136,210 | 2008 | 136,340 | 2007 | 136,300 | 2006 | 140,390 | 2005 | 141,800 | 2004 | 141,300 | 2003 | 148,000 | 2002 | 148,180 | 2001 | 147,980 | 2000 | 148,570 | 1999 | 147,810 | 1998 | 147,470 | 1997 | 147,980 | 1996 | 147,820 | 1995 | 147,970 | 1994 | 147,980 | 1993 | 147,930 | 1992 | 147,900 | 1991 | 147,980 | 1990 | 147,690 | 1989 | 147,580 | 1988 | 151,090 | 1987 | 150,930 | 1986 | 150,380 | 1985 | 150,200 | 1984 | 149,920 | 1983 | 149,810 | 1982 | 149,630 | 1981 | 149,480 | 1980 | 149,640 | 1979 | 149,670 | 1978 | 149,650 | 1977 | 149,600 | 1976 | 149,550 | 1975 | 149,460 | 1974 | 149,290 | 1973 | 149,040 | 1972 | 149,430 | 1971 | 149,350 | 1970 | 149,300 | 1969 | 149,680 | 1968 | 149,720 | 1967 | 148,380 | 1966 | 148,350 | 1965 | 147,910 | 1964 | 147,420 | 1963 | 147,240 | 1962 | 146,880 | 1961 | 146,010 |
|