demographic index

• 人口统计指标

demographic index的用法和样例：

例句

1. Fourthly, we should improve insurance statistics index.
   第四，完善充实保险统计指标。
2. The statistical index system of the railway industry is the core carrier of railway statistics.
   铁路运输业统计指标体系是铁路运输统计工作的核心载体。