| Views | |
| Costs of different water suply systems in Mtwara-Lindi regions | 52 |
| tammikuu 2013 | helmikuu 2013 | maaliskuu 2013 | huhtikuu 2013 | toukokuu 2013 | |
| Costs of different water suply systems in Mtwara-Lindi regions | 11 | 12 | 11 | 10 | 8 |
| Views | |
| United States of America | 23 |
| Canada | 18 |
| China | 8 |
| Russian Federation | 2 |
| Italy | 1 |
| Views | |
| Toronto | 18 |
| Redwood City | 10 |
| Beijing | 8 |
| San Francisco | 2 |
| Ashburn | 1 |
| Sayreville | 1 |
| Volpiano | 1 |