Year	Total
1990	4000
1991	11000
1992	15000
1993	15000
1994	20000
1995	36000
1996	60000
1997	90000
1998	100000
1999	110000
2000	120000
2001	130000
2002	180000
2003	190000
2004	200000
2005	210000
2006	220000