TABLE 3. Delivery Success of Messages, by Delivery Method and Subscriber Type (September 2011–June 2013)

	Pushed SMS		Pushed Voice		Retrieved Voice
Messages	Pregnancy	Child	Pregnancy	Child	Pregnancy	Child
No. attempted or expected^a	19,356	20,363	3,022	2,815	32,054	52,829
No. successfully received or retrieved	11,825	13,053	1,820	1,515	12,257	14,455
Percent success	61%	64%	60%	54%	38%	27%

↵a For retrieved voice messages, the expected number of messages retrieved is calculated weekly based on the number of current subscribers. For pushed SMS and voice messages, the number of messages attempted was based on actual number of attempts.