Bar chart with 3 groups with 2 items per group.
Group 1, 1999
Item 1, Developing Countries 57.61%
Item 2, Developed Countries 42.38%
Group 2, 2000
Item 1, Developing Countries 65.02%
Item 2, Developed Countries 34.97%
Group 3, 2001
Item 1, Developing Countries 76.26%
Item 2, Developed Countries 23.73%