Year	Total
1990	18000
1991	25000
1992	31500
1993	38000
1994	45000
1995	60000
1996	80000
1997	100000
1998	120000
1999	140000
2000	160000
2001	180000
2002	200000
2003	220000
2004	242000
2005	250000
