|  | 13 yr % | 15 yr % | 17 yr % | Total % and (N) | ||||
---|---|---|---|---|---|---|---|---|---|
 |  | Boys | Girls | Boys | Girls | Boys | Girls | Boys | Girls |
Have never tried | 1987 | 61 | 68 | 39 | 42 | 30 | 26 | 42 (658) | 43 (628) |
 | 1994 | 55 | 60 | 37 | 34 | 29 | 23 | 41 (733) | 39 (762) |
 | 2003 | 77 | 76 | 57 | 56 | 36 | 35 | 58 (797)* | 56 (874)* |
Have tried | 1987 | 35 | 28 | 48 | 35 | 45 | 40 | 43 (672) | 36 (513) |
 | 1994 | 38 | 33 | 45 | 37 | 44 | 40 | 42 (757) | 37 (709) |
 | 2003 | 21 | 19 | 35 | 30 | 45 | 36 | 33 (462) | 29 (448) |
Have smoked but stopped | 1987 | 2 | 1 | 3 | 2 | 3 | 3 | 2 (40) | 2 (31) |
 | 1994 | 3 | 3 | 5 | 6 | 6 | 7 | 5 (80) | 5 (101) |
 | 2003 | 1 | 1 | 4 | 3 | 5 | 8 | 3 (46) | 4 (63) |
Smoke occasionally | 1987 | 2 | 3 | 7 | 13 | 11 | 14 | 7 (108) | 10 (144) |
 | 1994 | 2 | 3 | 7 | 12 | 10 | 10 | 6 (110) | 9 (162) |
 | 2003 | 1 | 2 | 2 | 5 | 9 | 9 | 4 (54)* | 5 (84)* |
Smoke every day | 1987 | 0 | 0 | 3 | 8 | 11 | 17 | 6 (87) | 9 (132) |
 | 1994 | 2 | 1 | 6 | 11 | 11 | 20 | 6 (113) | 10 (198) |
 | 2003 | 0 | 2 | 2 | 6 | 5 | 12 | 2 (31)* | 6 (102)* |