Integrated Inventory Routing Problem with Quality Time Windows and Loading Cost for Deteriorating Items under Discrete Time

Table 1

Retailers’ demand in each period.

Period	Retailer
	1	2	3	4	5	6	7	8	9	10	11	12
1	22.3	30.3	37.9	31.1	29.5	21.2	42.1	13.2	12.1	20.4	15.3	25.1
2	24.8	37.9	51.2	42.3	34.4	27.0	55.7	25.6	12.9	22.3	17.0	28.2
3	35.2	51.3	68.8	58.7	45.8	41.5	83.3	54.8	18.2	27.9	22.3	31.3
4	36.3	52.5	71.3	60.3	45.8	42.7	84.0	56.7	19.3	28.1	22.9	32.7
5	30.8	45.2	57.8	52.5	40.1	35.7	67.9	43.3	15.5	25.2	20.1	30.5
6	25.1	37.7	49.9	43.8	34.6	27.7	53.0	25.1	13.4	22.5	17.7	27.6
7	39.8	58.9	73.2	65.9	48.0	47.9	75.7	67.7	21.3	30.3	25.2	34.4