| Year | Area planted (ha) | Area harvested (ha) | Yield (MT/ha) | Production (MT) |
| 2007 | 92,946 | 90,518 | 2.757 | 254,831 |
| 2008 | 98,477 | 97,533 | 3.141 | 314,570 |
| 2009 | 87,011 | 84,312 | 3.208 | 271,251 |
| 2010 | 92,002 | 90,923 | 3.262 | 298,558 |
| 2011 | 81,749 | 80,940 | 2.394 | 207,566 |