Year | Land Area (Ha) | Area Changes (Ha) | % Increase | Remark |
1972 | 368.31 | - | - | - |
1979 | 893.74 | +525.43 | 142.66 | Increase |
1986 | 4368.70 | +3474.96 | 388.81 | Increase |
1996 | 4706.50 | +337.8 | 7.73 | Increase |
2006 | 5904.50 | +1198.00 | 25.45 | Increase |
2015 | 11,913.20 | +6008.70 | 101.76 | Increase |
1972-2015 | - | +11,444.89 | 2443.87 | Increase |