Water productivity is calculated as GDP in constant prices of 2010 divided by annual total water withdrawal.
| Дата | Значение | Изменение, % |
|---|---|---|
| 2014 | 14,4 | 5,78% |
| 2012 | 13,6 | 26,43% |
| 2002 | 10,8 | 22,68% |
| 1997 | 8,8 | 31,22% |
| 1992 | 6,7 | -7,91% |
| 1987 | 7,3 | 1,60% |
| 1982 | 7,1 | -27,96% |
| 1977 | 9,9 |