| Total | Flush lavatory | | 86.2 | 89.1 | 89.7 | 91.9 | 92.6 | 91.8 | 94.3 |
| Dry lavatory | | 8.6 | 6.6 | 6.7 | 5.0 | 4.5 | 4.7 | 3.4 |
| Lavatory is outdoors | | 5.2 | 4.3 | 3.5 | 3.1 | 2.9 | 3.6 | 2.3 |
| Household without children | Flush lavatory | | 83.7 | 87.3 | 88.0 | 89.8 | 91.2 | 89.5 | 92.9 |
| Dry lavatory | | 10.1 | 7.4 | 7.5 | 6.4 | 5.3 | 5.9 | 4.2 |
| Lavatory is outdoors | | 6.3 | 5.2 | 4.5 | 3.8 | 3.6 | 4.6 | 2.9 |
| Single person aged under 65 | Flush lavatory | | 85.2 | 88.9 | 88.6 | 92.6 | 93.9 | 91.9 | 92.6 |
| Dry lavatory | | 8.7 | 4.5 | 7.6 | .. | 4.0 | 3.7 | 3.2 |
| Lavatory is outdoors | | 6.2 | 6.7 | 3.9 | 3.6 | 2.1 | 4.4 | 4.2 |
| Single person aged 65 and over | Flush lavatory | | 76.0 | 80.7 | 83.4 | 86.0 | 86.3 | 82.0 | 90.4 |
| Dry lavatory | | 13.8 | 12.4 | 9.5 | 8.7 | 7.1 | 9.9 | 5.1 |
| Lavatory is outdoors | | 10.2 | 6.9 | 7.1 | 5.3 | 6.7 | 8.1 | 4.5 |
| Couple without children, at least one partner is aged under 65 | Flush lavatory | | 88.5 | 89.4 | 91.8 | 92.8 | 94.1 | 93.2 | 96.1 |
| Dry lavatory | | 8.5 | 6.6 | 4.8 | 5.2 | 3.5 | 3.4 | 2.6 |
| Lavatory is outdoors | | 3.0 | 4.0 | 3.4 | .. | 2.4 | 3.4 | .. |
| Couple aged 65 and over without children | Flush lavatory | | 79.0 | 85.6 | 86.1 | 85.9 | 91.4 | 90.9 | 90.9 |
| Dry lavatory | | 15.0 | 9.5 | 8.3 | 9.7 | 4.5 | 5.9 | 6.7 |
| Lavatory is outdoors | | 6.0 | 4.9 | 5.6 | .. | 4.1 | .. | .. |
| Other household without children | Flush lavatory | | 86.9 | 89.8 | 88.9 | 90.4 | 90.9 | 89.6 | 92.9 |
| Dry lavatory | | 7.8 | 7.0 | 7.8 | 6.0 | 6.5 | 6.7 | 4.6 |
| Lavatory is outdoors | | 5.4 | 3.2 | 3.3 | 3.5 | 2.7 | 3.7 | .. |
| Household with children | Flush lavatory | | 93.3 | 93.7 | 94.5 | 97.3 | 96.4 | 97.0 | 97.7 |
| Dry lavatory | | 4.3 | 4.3 | 4.5 | 1.6 | 2.6 | 1.8 | 1.6 |
| Lavatory is outdoors | | 2.4 | 2.0 | 1.1 | 1.2 | 1.0 | .. | .. |
| Adult and child(ren) | Flush lavatory | | 95.2 | 96.1 | 92.8 | 95.6 | 97.7 | 97.8 | 97.1 |
| Couple with one child | | 94.9 | 95.1 | 95.1 | 98.7 | 97.7 | 97.6 | 98.0 |
| Couple with two children | | 96.6 | 96.0 | 96.6 | 97.9 | 98.4 | 97.9 | 99.5 |
| Couple with three or more children | | 89.9 | 95.8 | 93.9 | 98.2 | 97.5 | 97.6 | 98.0 |
| Couple with minor and adult children | | 89.8 | 89.8 | 95.9 | 98.0 | 95.9 | 95.9 | 95.5 |
| Other household with children | | 88.3 | 88.2 | 91.3 | 93.9 | 89.7 | 94.7 | 96.1 |
| Dry lavatory | | 8.4 | 8.6 | 6.7 | .. | 8.4 | .. | .. |