Table 1 Sample characteristics
2004 | 2007 | 2010 | 2013 | |||||
|---|---|---|---|---|---|---|---|---|
N | % | N | % | N | % | N | % | |
Total sample size | 29,445 | 23,356 | 26,648 | 23,855 | ||||
Sample size of the age group 12–17 | 2671 | 9.07 | 1455 | 6.23 | 1521 | 5.71 | 1157 | 4.85 |
Male | 1250 | 46.04 | 725 | 48.01 | 738 | 47.13 | 577 | 49.78 |
Age | ||||||||
12 | 386 | 14.22 | 205 | 13.58 | 232 | 14.81 | 151 | 13.03 |
13 | 477 | 17.57 | 239 | 15.83 | 259 | 16.54 | 183 | 15.79 |
14 | 453 | 16.69 | 247 | 16.36 | 242 | 15.45 | 188 | 16.22 |
15 | 463 | 17.05 | 256 | 16.95 | 275 | 17.56 | 197 | 17.00 |
16 | 469 | 17.27 | 289 | 19.14 | 264 | 16.86 | 224 | 19.33 |
17 | 467 | 17.20 | 274 | 18.15 | 294 | 18.77 | 216 | 18.64 |
Socioeconomic advantage | ||||||||
Least advantaged | 431 | 15.87 | 239 | 15.86 | 248 | 15.84 | 193 | 16.65 |
2nd quintile | 518 | 19.08 | 275 | 18.25 | 314 | 20.05 | 211 | 18.21 |
3rd quintile | 522 | 19.23 | 287 | 19.04 | 284 | 18.14 | 219 | 18.90 |
4th quintile | 644 | 23.72 | 354 | 23.49 | 346 | 22.09 | 262 | 22.61 |
Most advantaged | 600 | 22.10 | 352 | 23.36 | 374 | 23.88 | 274 | 23.64 |
Australian born | 2448 | 91.65 | 1283 | 88.18 | 1372 | 90.20 | 990 | 85.57 |
Response Rate | 46 | 49 | 51 | 49 | ||||