| Irrigation-Investment -public sector (USD) - The Africa Infrastructure Country Diagnostic (2005) |
Rank | Country | Value |
|---|
| 1 |  Nigeria | 160,250,100 |
| 2 | South Africa | 45,394,400 |
| 3 | Republic of the Congo | 9,787,258 |
| 4 | Senegal | 9,351,197 |
| 5 | Niger | 8,017,570 |
| 6 | Tanzania | 5,191,529 |
| 7 | Madagascar | 4,072,686 |
| 8 | Mozambique | 2,978,681 |
| 9 | Uganda | 1,909,068 |
| 10 | Ghana | 1,444,728 |
| 11 | Namibia | 651,707 |
| 12 | Malawi | 643,699 |
| 13 | Kenya | 179,964 |
| 14 | Cameroon | 87,847 |
| 15 | Lesotho | 74,181 |
| 16 | Zambia | 61,303 |
| 17 | Rwanda | 11,506 |
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