| Value | Category | Cases | |
|---|---|---|---|
| 1 | Government | 10629 |
70.2%
|
| 2 | Agricultural cooperative | 270 |
1.8%
|
| 3 | Joint venture | 1243 |
8.2%
|
| 4 | Cooperative | 8 |
0.1%
|
| 5 | Private, had built by own money | 2948 |
19.5%
|
| 6 | Private, had built by loan | 33 |
0.2%
|
| Sysmiss | 27652 |