Requirements for a subsistence standard of living and for higher levels in the colonial period changed with marital status. A man's income, his personal wealth, his consumption goods, and for farmers their land, had to increase with marriage and as children multiplied, though the old man might end as he began, dependent on other members of the family. In order to judge the proportion of men at different levels of wealth, and to measure inequality, the historian must construct a series of tables using all available measures of wealth for each stage in the life cycle.