Figure 1.
Sex ratio at birth (SRB) in China, 1970–2005.
Source: For 1982, 1990 and 2000, tabulation on the population census in 1982, 1990 and 2000; for other years, 1% Population Sampling Survey, National Bureau of Statistics of China.
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.