Use the data to comment on:

1. The mean annual change in elephant population for each country in the 10 years from 1979 to 1989. Which countries saw the largest changes?
2. The mean annual change in elephant population for each country in the 18 years from 1989 to 2007. Which countries saw the largest changes?
3. Comparison of results from 1 and 2

Country 1979 Elephant 1989 Elephant 2007 Elephant Population Population Population Angola 12,400 12,400 2,530 2 Botswana 20,000 51,000 175,487 3 Cameroon 16,200 21,200 15,387 4 Cen African Rep 63,000 19,000 3,334 5 Chad 15,000 3,100 6,435 6 Congo 10,800 70,000 22,102 7 Dem Rep of Congo 377,700 85,000 23,714 8 Gabon 13,400 76,000 70,637 9 Kenya 65,000 19,000 31,636 10 Mozambique 54,800 18,600 26,088 11 Somalia 24,300 6,000 70 12 Sudan 134,000 4,000 300 13 Tanzania 316,300 80,000 167,003 14 Zambia 150,000 41,000 29,231 15 Zimbabwe 30,000 43,000 99,107