Year | Value | 2021 | 381,193.672 | 2020 | 380,076.741 | 2019 | 379,954.219 | 2018 | 378,765.993 | 2017 | 376,715.465 | 2016 | 377,852.311 | 2015 | 377,498.354 | 2014 | 377,488.428 | 2013 | 377,380 | 2012 | 376,405 | 2011 | 375,440 | 2010 | 374,525 | 2009 | 373,670 | 2008 | 372,815 | 2007 | 371,960 | 2006 | 370,985 | 2005 | 369,620 | 2004 | 366,170 | 2003 | 366,470 | 2002 | 373,110 | 2001 | 371,560 | 2000 | 371,430 | 1999 | 370,690 | 1998 | 369,820 | 1997 | 368,740 | 1996 | 366,840 | 1995 | 366,000 | 1994 | 363,510 | 1993 | 362,130 | 1992 | 358,310 | 1991 | 357,960 | 1990 | 354,550 | 1989 | 354,700 | 1988 | 352,500 | 1987 | 352,270 | 1986 | 352,030 | 1985 | 346,870 | 1984 | 347,170 | 1983 | 341,730 | 1982 | 341,360 | 1981 | 340,990 | 1980 | 335,620 | 1979 | 335,250 | 1978 | 329,890 | 1977 | 329,530 | 1976 | 324,160 | 1975 | 323,800 | 1974 | 318,430 | 1973 | 313,080 | 1972 | 312,700 | 1971 | 307,340 | 1970 | 302,970 | 1969 | 302,610 | 1968 | 300,240 | 1967 | 299,880 | 1966 | 299,510 | 1965 | 299,150 | 1964 | 298,780 | 1963 | 298,070 | 1962 | 299,420 | 1961 | 300,420 |
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