Year per person 1971 368 1972 394.1 1973 404.6 1974 429.5 1975 446.5 1976 474.1 1977 466.8 1978 486.3 1979 457.2 1980 527.7 1981 557.5 1982 599.9 1983 595.1 1984 614.7 1985 644.6 1986 680.2 1987 720.2 1988 724.9 1989 496.1 1990 515.8 1991 520.9 1992 523.9 1993 552.5 1994 579.4 1995 580.8 1996 592 1997 602.4 1998 634.5 1999 652.9 2000 677.6 2001 691.9 2002 717 2003 734.5 2004 740.2 2005 761.8 2006 781.7 2007 794.8 2008 798.3