Year Total 1990 1020000000 1991 1030000000 1992 1068000000 1993 1282000000 1994 1060000000 1995 1051000000 1996 986200000 1997 819100000 1998 1101000000 1999 1011000000 2000 1226000000 2001 1296000000 2002 1307000000 2003 1319000000 2004 1456000000 2005 1566000000 2006 1667000000 2007 1817000000 2008 1837000000