Regionally, the Rocky Mountain states reported the most rapid growth rate - 37.1 percent since 1970 in a vast area with only 5 percent of the US population.

从区域上看，洛基山脉各州上报了自1970年以来最高的人口增长率——37.1%，而以前这片广阔的土地上的人口仅占美国总人口的5%。

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ASEAN becomes the world's most vigorous regions because of its sustained rapid growth rate, which arouses great interest among people.

持续高速的增长率让东盟成了世界上最有活力的地区，从而引起了人们的极大兴趣。

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