| Date | Salinity (‰) | Conductivity (mS/cm) | Total dissolved solids (g/l) | Level (m BSL) | Area (km2) | Volume (km3) |
| *Nov. 2002 | 104.2 | 146.8 | 152.1 | 42 | 194.9 | 1.04 |
| *Mar. 2003 | 103.4 | 145.9 | 150.7 | 41.5 | 198.6 | 1.14 |
| 28 Feb. 2011 | 30.4 | 46.5 | 30.1 | 30.0 | 375.4 | 4.60 |
| 28 Feb. 2012 | 26.1 | 40.6 | 20.3 | 29.5 | 385.3 | 4.99 |
| 13 May 2013 | 23.7 | 37.6 | 18.8 | 29.0 | 391.4 | 5.22 |
| 16 Dec. 2013 | 24.4 | 38.3 | 19.2 | 29.5 | 387 | 5.00 |
| 23 May 2014 | 23.4 | 36.8 | 18.5 | 29.0 | 393 | 5.25 |