Year	per 1,000 uninfected population ages 15-49
1990	24.2
1991	31.8
1992	38.5
1993	44.6
1994	48.7
1995	50
1996	48.7
1997	45.1
1998	40.5
1999	35.9
2000	31.4
2001	27.6
2002	24.7
2003	22.1
2004	19.9
2005	18
2006	16.5
2007	15
2008	14.3
2009	13.1
2010	12.2
2011	11.5
2012	10.4
2013	9.5
2014	9.1
2015	8.8
2016	8.3
2017	7.7
2018	7.4