Year	Total
1990	1730000000
1991	1839000000
1992	1758000000
1993	1849000000
1994	1683000000
1995	1860000000
1996	1950000000
1997	1767000000
1998	1676000000
1999	1222000000
2000	1219000000
2001	1432000000
2002	1264000000
2003	1487000000
2004	1573000000
2005	1690000000
2006	1763000000
2007	1295000000
2008	1371000000