Table 6. The efficiency of medicine delivery from 2009 to 2011.

	Response rate of delivery, %			Arrival rate of essential medicines, %
	Mean	SD	Median [25%, 75%]	Mean	SD	Median [25%, 75%]
2009	99.68	1.63	100 [100, 100]	91.66	21.95	100 [97.42, 100]
2010	97.67	11.49	100 [100, 100]	90.33	21.41	99.12 [91.11, 100]
2011	97.56	10.28	100 [100, 100]	86.45	27.49	99.27 [89.69, 100]
Total	98.24	9.10	100 [100, 100]	89.32	23.65	99.59 [91.43, 100]