Table 5.

Mean number of years (range) until countries began implementation, by income group

	High-income	Upper- middle- income	Lower- middle- income	Low- income	All countries
Hepatitis B	13.3 (1–25)	16.9 (6–24)	16.0 (1–26)	21.2 (8–27)	16.7 (1–27)
Haemophilus influenzaetype B	9.0 (3–17)	14.3 (8–23)	17.5 (11–22)	18.8 (10–22)	14.6 (3–23)
Insecticide-treated mosquito net	15.0 (14–16)	12.9 (4–18)	11.7 (1–18)	12.2 (5–16)	12.2 (1–18)

Legend.

The table shows data only for the three interventions which more than 80% of all countries (HepB, Hib), or malaria-endemic countries (ITNs), have begun to implement.