Year | Value | 2021 | 385,950 | 2020 | 384,761 | 2019 | 381,900 | 2018 | 379,030 | 2017 | 375,401 | 2016 | 373,320 | 2015 | 371,210 | 2014 | 369,100 | 2013 | 366,990 | 2012 | 364,880 | 2011 | 363,252 | 2010 | 356,830 | 2009 | 349,850 | 2008 | 345,130 | 2007 | 350,770 | 2006 | 342,190 | 2005 | 335,910 | 2004 | 331,010 | 2003 | 316,070 | 2002 | 304,980 | 2001 | 305,590 | 2000 | 305,340 | 1999 | 305,570 | 1998 | 304,490 | 1997 | 304,920 | 1996 | 305,000 | 1995 | 305,000 | 1994 | 304,720 | 1993 | 305,400 | 1992 | 561,050 | 1991 | 561,580 | 1990 | 563,120 | 1989 | 565,200 | 1988 | 567,750 | 1987 | 570,300 | 1986 | 573,850 | 1985 | 576,900 | 1984 | 578,900 | 1983 | 583,480 | 1982 | 586,050 | 1981 | 588,600 | 1980 | 591,150 | 1979 | 592,770 | 1978 | 592,890 | 1977 | 593,100 | 1976 | 593,300 | 1975 | 593,800 | 1974 | 594,300 | 1973 | 594,800 | 1972 | 595,300 | 1971 | 593,400 | 1970 | 591,500 | 1969 | 592,000 | 1968 | 589,700 | 1967 | 588,500 | 1966 | 587,700 | 1965 | 586,750 | 1964 | 583,300 | 1963 | 583,800 | 1962 | 582,490 | 1961 | 578,360 |
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