This leaves no-worker households, which decrease as a proportion of households as we move up the deciles. The relative dominance of single worker households remains across all three datasets with approximately 44% and 47% of households in this category. While the patterns are the same across all three datasets, the levels are not. The data suggest that there has been a dramatic increase in single adult households over the last 15 years from 23% in 1993 up to 33% in 2008 (from 30% in 2000).