"From 2009 through 2013, the annual estimated number and the estimated rate of infections classified as stage 3 (AIDS) in the United States decreased (Table 2a). In 2013, the estimated rate of infections classified as stage 3 (AIDS) was 8.4."
Source
Centers for Disease Control and Prevention. HIV Surveillance Report, 2013; vol. 25. Published February 2015. Accessed October 29, 2015, p. 7.
http://www.cdc.gov/hiv/pdf/g-…
