Respondents | 2016 | 2017 | 2018 |
---|---|---|---|
Target population (n) | 72,724 | 71,577 | 71,696 |
Survey responses: Self-respondents and proxies (n), (response rate, %) | 40,371 (56%) | 38,491 (54%) | 35,432 (49%) |
Self-respondents (n), (response rate, %) | 13,763 (19%) | 13,251 (19%) | 12,620 (18%) |