Percentage of people, by demographic characteristic in wave 1
| Wave 1 (CI) | |
| Gender: male (%) | 89.7 (88.1 to 91.1) |
| Age bracket: 18–29 years (%) | 19.7 (17.8 to 21.7) |
| Age bracket: 30–49 years (%) | 46.2 (43.8 to 48.7) |
| Age bracket: 50 years and older (%) | 34.2 (31.9 to 36.5) |
| Education: less than secondary school (%) | 6.6 (5.5 to 7.9) |
| Education: secondary school complete (%) | 43.3 (40.9 to 45.8) |
| Education: vocational education complete (%) | 12.1 (10.5 to 13.8) |
| Education: tertiary education incomplete (%) | 3.9 (3.1 to 5.0) |
| Education: tertiary education complete (%) | 34.1 (31.9 to 36.5) |
| Mean household size (number of people) | 3.6 (3.5 to 3.6) |
| Employment status: employed in private or public sector (%) | 28.4 (26.2 to 30.7) |
| Employment status: self-employed (%) | 31.9 (29.6 to 34.3) |
| Employment status: unemployed (%) | 29.7 (27.5 to 32.0) |
| Employment status: not in labour force (%) | 10.0 (8.6 to 11.6) |