In many countries that was half as long again as in 1970, and in some of them twice as long.

在许多国家，这些数字仅是1970年相应数字的一半，其中一些国家情况则是1970年数字的两倍。

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In many countries that was half as long again as in 1970, and in some of them twice as long.

在许多国家，这些数字仅是1970年相应数字的一半，其中一些国家情况则是1970年数字的两倍。

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