The output in this area has increased rapidly in the past few years.
精彩常用词汇：
significant changes 图中一些较大变化
noticeable trend 明显趋势
during the same period 在同一时期
grow/grew 增长
unequally 不相等地
average 平均
no doubt 无疑地
overall 总体上讲
except 除外
in the case of adv. 在…的情况下
in contrast 相反，大不相同
in conclusion adv. 最后，总之
in comparison 相比之下
in general 通常，大体上，一般而言
rang from 从.....到...
lower v.降低，跌落
forecast n. 先见，预见 v. 预测