免费联合国全球人口预测数据，到2050年 [推广有奖]

http://esa.un.org/unpp/index.asp?panel=2

数据换算公式

example

2010：100 people

2050: 150 people

growth rate between two data points:

=((150/100)^(1/40)-1))*100

then you can easily work out data between two points