Year	Total
1991	333000
1992	410000
1993	510000
1994	650000
1995	800000
1996	900000
1997	1000000
1998	1100000
1999	1250000
2000	1380000
2001	1500000
2002	1630000
2003	1771000
2004	1924000
2005	2077000
2006	2200000