| Season | Seasonal Rainfall (mm) | ET (kg yield/m3) | Potential Yield (ton/ha) | Actual Yield (ton/ha) | Dry Yield (ton/ha) |
| 2003 | 795 | 1.42 | 13.67 | 13.3 | 6.808 |
| 2004 | 426 | 1.16 | 13.7 | 8.6 | 4.285 |
| 2005 | 608 | 1.38 | 13.8 | 12.2 | 5.986 |
| 2006 | 423 | 1.14 | 13.8 | 9.0 | 4.061 |
| 2007 | 510 | 1.56 | 13.9 | 11.7 | 6.321 |
| 2008 | 409 | 1.01 | 13.9 | 7.1 | 3.389 |
| 2009 | 360 | 1.13 | 14.0 | 7.9 | 3.915 |
| 2010 | 628 | 1.53 | 14.0 | 14.0 | 7.022 |
| 2011 | 423 | 1.47 | 14.1 | 12.6 | 6.252 |
| 2012 | 647 | 1.34 | 14.2 | 11.8 | 5.692 |