| type | level |
|---|---|
| province | 1 |
| total area in square kilometers | 140 914 |
|---|
| year | population | type | source |
|---|---|---|---|
| 1981 | 19 029 000 | census | official |
| 1981 | 19 029 000 | census | secondary |
| 1998 | 29 991 000 | census | official |
| 1998 | 29 991 000 | census | secondary |
| 2006 | 32 850 245 | estimate | official |
| 2007 | 33 463 705 | estimate | official |
| 2013 | 36 079 260 | calculation |
| Date | Year | Change |
|---|
