然而，这是一个有争议的理论，一些学者根据他们对相关数据的解读，对此抱有怀疑态度。
However, this is a contentious theory and such claims have been treated skeptically by some scholars based on their reading of the relevant data.
系统管理员可以根据已有资源计量数据创建他们自己定制的计量表。
System administrators can create their own custom meters based upon existing resource metering data.
所以他们收集了来自国民人口统计和调查的数据，并根据他们对各个国家人口增长情况的了解做进一步的研究。
So they took the data they gathered from national censuses and surveys, and projected it forward based on what they knew about population growth in each country.
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