| Frequency | Percentage |
Meet hobbies | 180 | 27.27 |
Increase health care knowledge | 185 | 28.03 |
Improve cultural level | 75 | 11.37 |
Communicate with others | 160 | 24.24 |
Kill time | 40 | 6.06 |
Re-employment | 15 | 2.27 |
Others | 5 | 0.76 |
In total | 660 | 100 |