The household size data from 2001is truncated to size 6, and I assume that all households of size 6 or greater have size exactly 6. The data are k 1 = 29% (i.e. 29% of households are single person households), k 2 = 35%, k 3 = 16%, k 4 = 14%, k 5 = 5% and k 6 = 2%. The size of the mean household is thus 2.38 (average size of households where households are sampled at random), while the household of the mean individual has size 3.06 (average size of household to which individuals belong, where individuals are sampled at random).