Table B-1. Household Sample Size by Month and Interview Status Nonre- sponse Month Nonin- rate Inter- ter- (per- Eligible viewed viewed cent)* Oct. 1991 ...... 10,500 8,600 1,900 18.3 Nov. 1991 ...... 10,400 8,600 1,800 17.7 Dec. 1991 ...... 10,400 8,500 1,900 18.0 Jan. 1992 ...... 10,300 8,400 1,800 18.0 * Due to rounding of all numbers to the nearest 100, there are some inconsistencies. We calculated the percentages using unrounded numbers.