The ratio of gross rent to household income in 1979, converted to percentage form, reported for "specified renter-occupied" units, which excludes one-family homes on 10 acres or more. Data are reported as medians and in terms of the number of units in categories such as "less than 20 percent, "20 to 24 percent," "25 to 34 percent," and "35 percent or more" ', and these figures are typically cross-classified with household income. No-cash-rent units and units occupied by households reporting no income or a net loss are assigned to a "not computed" category. This item was computed on a sample basis.