| 1 有必要 |
| 2 沒必要 |
| 3 根據具體情況而定 |
| 8 其他（請填寫) |
| 9 不知道 |
| 99 missing |
| 1 | 2 | 3 | 8 | 9 | 99 | |||||
| % | % | % | % | % | % | |||||
| Total | 17.9 | 66.8 | 11.1 | - | 4.1 | 0.1 | ||||
| Gender | Male | 19.5 | 66.1 | 10.3 | - | 4.1 | - | |||
| Female | 16.5 | 67.4 | 11.7 | - | 4.1 | 0.3 | ||||
| Age | 20-24yrs | 12.5 | 68.8 | 8.3 | - | 10.4 | - | |||
| 25-29yrs | 13.6 | 69.7 | 12.1 | - | 4.5 | - | ||||
| 30-34yrs | 16.5 | 72.8 | 7.8 | - | 1.9 | 1 | ||||
| 35-39yrs | 15.5 | 72.2 | 11.3 | - | 1 | - | ||||
| 40-44yrs | 20.2 | 65.7 | 11.1 | - | 3 | - | ||||
| 45-49yrs | 20 | 61.2 | 14.1 | - | 4.7 | - | ||||
| 50-54yrs | 19.5 | 64.9 | 10.4 | - | 5.2 | - | ||||
| 55-59yrs | 14 | 60 | 18 | - | 8 | - | ||||
| 60-64yrs | 26.8 | 61 | 12.2 | - | - | - | ||||
| 65-69yrs | 24.2 | 63.6 | 6.1 | - | 6.1 | - | ||||
| 70yrs&over | 18.8 | 65.6 | 9.4 | - | 6.3 | - | ||||
| missing | - | 100 | - | - | - | - |