Water productivity is calculated as GDP in constant prices of 2010 divided by annual total water withdrawal.
| Дата | Значение | Изменение, % |
|---|---|---|
| 2014 | 21,7 | 6,66% |
| 2012 | 20,4 | -3,04% |
| 2002 | 21,0 | 2,09% |
| 1992 | 20,6 | -18,50% |
| 1987 | 25,2 | -1,37% |
| 1982 | 25,6 | 8,05% |
| 1977 | 23,7 | 6,99% |
| 1972 | 22,1 |