Year	Total
1990	876000
1991	995000
1992	1200000
1993	1400000
1994	1600000
1995	1800000
1996	1950000
1997	2100000
1998	2200000
1999	2250000
2000	2300000
2001	2400000
2002	2800000
2003	3300000
2004	3627000
2005	3954000
2006	4400000