Year	per 100 people
1960	0
1965	0
1970	0
1975	0
1976	0
1977	0
1978	0
1979	0
1980	0
1981	0
1982	0
1983	0
1984	0
1985	0
1986	0
1987	0
1988	0
1989	0
1990	0
1991	0.616033935
1992	0.908690884
1993	1.3102837
1994	2.771878086
1995	3.307927032
1996	3.811218894
1997	3.675889328
1998	8.210057752
1999	12.6266612
2000	16.98004844
2001	20.18275922
2002	43.3680688
2003	48.84169293
2004	59.75464013