Year	per 1,000 uninfected population ages 15-49
1990	0.1
1991	0.1
1992	0.1
1993	0.2
1994	0.3
1995	0.4
1996	0.6
1997	0.8
1998	1
1999	1.3
2000	1.5
2001	1.8
2002	1.9
2003	2
2004	1.9
2005	1.8
2006	1.6
2007	1.3
2008	1.2
2009	1.1
2010	1.1
2011	1.1
2012	1
2013	1
2014	1
2015	0.9
2016	0.9
2017	0.9
2018	0.8