| Value | Category | 
|---|---|
| -9 | don't know | 
| -8 | refuse to answer | 
| 1 | no single large shareholding block (multiple shareholders) | 
| 2 | foreign individual/ family | 
| 3 | foreign firm | 
| 4 | foreign state | 
| 5 | (nationality) family | 
| 6 | (nationality) individual | 
| 7 | (nationality) state | 
| 8 | other | 
| Sysmiss |