图表种类
表格图
图表instruction
The table below gives information about percentage of population over 60 in 6 regions and the whole world in 2000 and 2050.
Summarize the information by selecting and reporting the main features, and make comparisons where relevant.
图表要素回忆
描述6大洲包括Africa, Europe, North America等在内的老龄人口的比例变化，有关2个年份，一个是过去时态，一个是将来时间预测。数据不多，难度也并不大。