Year	per 1,000 uninfected population ages 15-49
1990	11.9
1991	16.5
1992	22.2
1993	28.2
1994	34.6
1995	39.9
1996	43
1997	43.5
1998	42
1999	39.1
2000	36.3
2001	32.3
2002	29.6
2003	27.2
2004	25.2
2005	24.1
2006	23.3
2007	23.7
2008	23.6
2009	23.1
2010	21.6
2011	20.7
2012	20.3
2013	19.6
2014	18.8
2015	18
2016	16.6
2017	14.9
2018	13.4