The chart gives us an overall picture of the 圖表主題. The first thing we notice is that 圖表最大特點 . This means that as (進一步說明).
We can see from the statistics given that 圖表細節一 . After 動詞-ing 細節一中的第一個變化， the動詞-ed+幅度+時間(緊跟著的變化) . The figures also tell us that圖表細節二 . In the column, we can see that accounts for (進一步描述).
Judging from these figures, we can draw the conclusion that (結論). The reason for this, as far as I am concerned is that (給出原因). / It is high time that we (發出倡議).