as is shown/indicated/illustrated by the figure/percentage in the　table(graph/picture/pie/chart), __作文题目的议题__ has been on rise/ decrease(goes up/increases/drops/decreases),significantly/dramatically/steadily rising/decreasing from__ in __ to __ in __. From the sharp/marked decline/ rise in the chart, it goes without saying that __.

　　There are at least two good reasons accounting for __. On the one hand, __. On the other hand,　__ is due to the fact that __.In addition, __ is responsible for __.Maybe there are some other reasons to show __.But it is generally believed that the above mentioned reasons are commonly convincing.

　　As far as I am concerned, I hold the point of view that __. I am sure　my opinion is both sound and well-grounded.