In Hong Kong, the composite consumer price index is based on a monthly survey conducted throughout the territory. The indicator consists of 980 consumer goods and services classified into 9 major groups. Housing accounts for 40.3 percent of total weight, Food for 27.4 percent and Miscellaneous Services such as education, communications, information and medical care for 13.1 percent. Transport constitutes 6.2 percent of total index; Durable Goods for 4 percent; Miscellaneous Goods for 3.3 percent and Clothing and Footwear for 2.4 percent. Electricity, Gas and Water account for 2.8 percent and Alcoholic Drinks and Tobacco for the remaining 0.5 percent.