Table 1.

Number of households allocated to each bottle size during each intervention period

	Bottle size
	250 ml	500 ml	1000 ml	1500 ml
Intervention period 1	n = 4	n = 4	n = 4	n = 4
Intervention period 2	n = 4	n = 4	n = 4	n = 4
Intervention period 3	n = 4	n = 4	n = 4	n = 4
Intervention period 4	n = 4	n = 4	n = 4	n = 4