Year Total 1990 651500 1991 638300 1992 559200 1993 567700 1994 582300 1995 447400 1996 515900 1997 519900 1998 547900 1999 553900 2000 503900 2001 476500 2002 581900 2003 561100 2004 520100 2005 536200 2006 457000 2007 586200 2008 615800 2009 637300 2010 805400