Calendar year | 2009 (June–December) | 2010 | 2011 | 2012 (January–November) | 2019 June–2020 March | 2021 (June–November) |
---|---|---|---|---|---|---|
N interviewed | 711 | 816 | 773 | 699 | 858 | 533 |
N and % (95% CI) reporting drug seizurea | 49 6.9 (5.0–8.8) | 66 8.1 (6.2–10.0) | 43 5.6 (3.9–7.2) | 23 3.3 (2.0–4.6) | 44 5.1 (3.6–6.6) | 23 4.3 (2.6–6.0) |