Senegal
total: 2.22 cu km/yr (4%/3%/93%)
per capita: 190 cu m/yr (2002)
Sierra Leone
total: 0.38 cu km/yr (5%/3%/92%)
per capita: 69 cu m/yr (2000)
Singapore
total: 0.19 cu km/yr (45%/51%/4%)
per capita: 44 cu m/yr (1975)
Slovakia
total: 1.04
per capita: 193 cu m/yr (2003)
Slovenia
total: 0.9
per capita: 457 cu m/yr (2002)
Somalia
total: 3.29 cu km/yr (0%/0%/100%)
per capita: 400 cu m/yr (2000)
South Africa
total: 12.5 cu km/yr (31%/6%/63%)
per capita: 264 cu m/yr (2000)
Spain
total: 37.22 cu km/yr (13%/19%/68%)
per capita: 864 cu m/yr (2002)
Sri Lanka
total: 12.61 cu km/yr (2%/2%/95%)
per capita: 608 cu m/yr (2000)
Sudan
total: 37.32 cu km/yr (3%/1%/97%)
per capita: 1,030 cu m/yr (2000)