Water productivity is calculated as GDP in constant prices of 2010 divided by annual total water withdrawal.
| Дата | Значение | Изменение, % |
|---|---|---|
| 2014 | 193,1 | 3,88% |
| 2012 | 185,9 | 0,06% |
| 2007 | 185,8 | 20,96% |
| 2002 | 153,6 | 19,84% |
| 1997 | 128,2 | 21,48% |
| 1992 | 105,5 | 3,54% |
| 1987 | 101,9 | 59,21% |
| 1982 | 64,0 | 10,06% |
| 1977 | 58,2 | 7,78% |
| 1972 | 54,0 |