- The country with the highest GNI per capita for 2004 is Seychelles (US$8,190). It is followed by Mauritius (US$4,640), Botswana (US$4,360), Gabon (US$4,080), and South Africa (US$3,630).
- The biggest economy is South Africa, with a real GDP of US$152.3 billion (2004). The second largest economy, Nigeria, has a GDP of US$51.7 billion.
- The smallest economy reported on in the ADI is Sao Tome and Principe, with a real GDP of US$54 million (2004).
- The country with the largest Agriculture value added is Central African Republic (57.0 percent of GDP) while the least is Botswana at 2.3 percent of GDP (2004).
- The country with the largest population is Nige ria , with 128.7 million people. It is followed by Ethiopia, with 70.0 million people, and the Democratic Republic of Congo, with 55.9 million people.
6. The country with the largest population growth rate is Eritrea, 4.3 percent (2004). South Africa has the least growth: -0.7 percent.
7. The country with the most urbanized population is Djibouti, at 84 percent.
8. The country with the least urbanized population is Burundi, at 10 percent.
9. The country with the highest percentage of people above 65 years is the Mauritius, at 7 percent (2004).
10. The countries with the lowest percentage people above 65 years are Angola, Eritrea, Liberia, Niger, and Uganda, with 2 percent (2004).
11. Nearly half the population of Uganda (50 percent) and Niger (49 percent) are under 14 years old (2004).
12. The country with the highest fertility rate (births per woman) is Niger, 7.7 (2004).
13. The country with the lowest fertility rate is Mauritius, 2.0 (2004).
14. During the past two decades fertility rates have dropped in every African country. The greatest drop in fertility is found in Namibia from 5.9 in 1990, to 3.8 in 2004, followed by Rwanda from 7.4 (1990) to 5.5 (2004).
15. The country with the highest gross secondary enrollment rate is the Seychelles (112 percent), while the lowest is Niger (6 percent).
16. The countries with the highest life expectancy at birth are Mauritius, 73 years, and Cape Verde, 70 years (2004).
17. The country with the lowest total life expectancy, 35 years (2004) is Botswana, followed by Lesotho, 36 years, and Zimbabwe with 37 years.
18. The country that has made the greatest gains in life expectancy in the past decade is Rwanda from 31 (1990) to 44 (2004) years. This is followed by Comoros from 56 (1990) to 63 (2004). 
19. The countries with the greatest reduction in life expectancy in SSA in the past decade are Botswana (-29 years) followed by Lesotho (-22 years) and Zimbabwe (-21 years).
20. The country with the highest infant mortality rate is Sierra Leone, with 165 per 1,000 live births (2004). The second highest rate is found in Liberia, with 157 per 1,000 live births.
21. The country with the lowest infant mortality rate is the Seychelles, with 12 per 1,000 live births (2004). The second lowest rate is found in Mauritius, with 14 per 1,000 live births
22. The countries with the highest maternal mortality rate are Sierra Leone, with 2,000 per 100,000 live births, and Malawi, with 1,800 per 100,000 live births.
23. The countries with the lowest maternal mortality are Mauritius, with 24 per 100,000 live births, and Botswana, with 100 per 100,000 live births.
24. The country with the highest level of immunization for 1 year-olds (12-23 months) is the Seychelles (99 percent). Central African Republic and Nigeria have the lowest levels with 35 percent.
25. The country with the most children under-5 that are underweight is Ethiopia, at 47.2 percent.
26. The country with the highest level of births assisted by skilled health staff is Mauritius, 99 percent while Ethiopia has the lowest at 6 percent.
27. The country with the greatest HIV prevalence (2004) is Swaziland, where one out of every three adults has contracted the virus (33.4 percent) in the 15-49 age group, followed by Botswana (24.1 percent). The least is Madagascar (0.5 percent).
28. The country with the highest adult literacy is Seychelles (92 percent); the lowest is Mali (19 percent).
29. The country with the highest adult female literacy rate is Seychelles at 92 percent; the lowest is Mali at 12 percent.
30. The country with the highest youth literacy is Seychelles (99 percent) while the lowest is Mali (24 percent).
31. The country with the highest youth female literacy rate is Seychelles at 99 percent while the lowest is Mali at 17 percent.
32. The country with the highest net primary school enrollment rate is Seychelles, at 100 percent while the lowest is Djibouti, 33 percent.
33. The country with the highest primary-school pupil-teacher ratio is the Republic of Congo, with 83 pupils per teacher.
34. The country with the lowest primary-school pupil-teacher ratio is the Seychelles, with 14 pupils per teacher.
35. The country with the most telephone mainlines are Mauritius and the Seychelles, with 288 and 253 per 1,000 people, respectively.
36. The countries with the fewest telephone mainlines are the Democratic Republic of Congo and Chad, with less than one and one per 1,000 people, respectively.
37. The average for Sub-Saharan Africa is 10 mainlines per 1,000 persons and 74 mobiles phones per 1,000 people. In 44 out of the 48 SSA countries (92%), there are more mobile phones per 1,000 people than mainlines per 1,000 people.
38. The country using the most electric power per capita is South Africa, at 4,560 kWh per capita.
39. The country using the least electric power per person is Togo (9 kWh. per capita).
40. The country with the highest percentage of population with access to improved water sources is Mauritius (100 percent) while the least is Ethiopia, with 22 percent.
41. The country with the highest population access to improved sanitation is Mauritius (99 percent) while the least is Ethiopia with 6 percent.
42. The country with the highest population access to electricity is Mauritius (100 percent) while the least is Chad with 3 percent.
43. The country with the highest workers remittances received is Nigeria with US$2.3 billion, followed by Sudan with US$1.4 billion.
44. The country with the highest net inflow of people is Rwanda (1.9 million); the highest net outflow is found in the Democratic Republic of Congo (1.4 million).
45. The country that received the highest aid per capita during 2004 is Cape Verde (US$282), followed by São Tomé and Principe (US$219) and the Seychelles (US$124).
46. The countries that received the lowest ODA per capita in 2004 were Nigeria (US$4.5), followed by Cote d’Ivoire (US$9), Togo (US$10) and Zimbabwe (US$14).
47. The country with the highest cost for starting a business as a percentage to GNI per capita in 2005 is Angola (643%) while the least are South Africa and Mauritius (9%).
48. The country with the highest cost for a local phone call and the highest cost for a call to the United States, both for three minutes, is the Central African Republic with costs of US$0.43 and US$13.59, respectively.
49. The country with the highest exports is Swaziland: 93.6 percent of GDP, while the country with the highest imports is São Tomé and Principe: 107.5 percent of GDP.
50. The country with the highest net foreign direct investment is Nigeria (US$ 4.4 billion) while the least is South Africa (US$ -1 billion).
Source: World Bank
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