Site/class | n | < 12 months | 13–36 months | 37–60 months | 61–120 months | > 120 months | Don’t know |
---|---|---|---|---|---|---|---|
Irrigated | 98 | Â | Â | Â | Â | Â | Â |
 Pyrethroids | 46 | 2.2 (0–4.4) | 15.2 (9.9–20.5) | 4.3 (1.3–7.3) | 26.1 (19.6–32.6) | 45.7 (38.4–53) | 6.5 (2.9–10.1) |
 Organophosphates | 5 | – | 60 (38.1–81.9) | – | 20 (2.1–37.9) | 20 (2.1–37.9) | – |
 Carbamates | 2 | – | – | – | – | 100 (100) | – |
Non-irrigated | 102 | Â | Â | Â | Â | Â | Â |
 Pyrethroids | 24 | 12.5 (5.7–19.3) | 8.3 (2.7–13.9) | 4.2 (0.1–8.3) | 16.7 (9.1–24.3) | 45.8 (35.6–56) | 12.5 (5.7–19.3) |
 Organophosphates |  | – | 50 (14.6–85.4) | – | – | 50 (14.6–85.4) | – |