Year per person 1990 534.9 1991 495.1 1992 504.1 1993 562.5 1994 566.8 1995 919.8 1996 464.2 1997 531.1 1998 608.5 1999 573.9 2000 557.5 2001 542.9 2002 526.9 2003 569 2004 601.1 2005 633.2 2006 583 2007 601.9 2008 617.9