Year	Total
1991	620000
1992	697000
1993	816000
1994	996000
1995	1193000
1996	1392000
1997	1589000
1998	1800000
1999	2000000
2000	2200000
2001	2300000
2002	2405000
2003	2515000
2004	2630000
2005	2745000
2006	2931000