一 引言 研究一个国家或一个地区的社会、经济情况,传统上往往使用该国家或该地区的国民生产总值、人均产值、人均实际收入、失业率、物价等指标来衡量。这些指标确实很能说明问题,但它们也有局限性。如在20世纪以前,有些指标没有统一的定义,另一些指标没有系统的收集。再者,这些指标并不能反映人民福利的另一个侧面,如劳动强度、生活环境等等。因此人们一直不断地在努力寻找更新、更具体的资料及方法。收集人体身高的资料,加以计 I. INTRODUCTION The study of the social and economic conditions in a country or a region is traditionally measured using indicators such as gross domestic product, per capita GDP, real per capita income, unemployment rate, and price in the country or region. These indicators really illustrate the problem, but they also have limitations. For example, some indicators did not have a uniform definition until the 20th century, while others were not collected systematically. Furthermore, these indicators do not reflect the other side of people’s welfare, such as labor intensity, living environment and so on. Therefore, people are constantly trying to find newer and more specific materials and methods. Collect the body height of the data, to be measured