Year	Total
1990	450000
1991	650000
1992	950000
1993	1300000
1994	1800000
1995	2700000
1996	3400000
1997	4200000
1998	5000000
1999	6100000
2000	8500000
2001	10800000
2002	13000000
2003	15650000
2004	24000000
2005	30000000