| Value | Category | Cases | |
|---|---|---|---|
| 1 | Contribute time and money | 10850 |
56.6%
|
| 2 | Contribute time only | 4894 |
25.5%
|
| 3 | Contribute money only | 1653 |
8.6%
|
| 4 | No contribution | 1761 |
9.2%
|