a population of over 1.3 billion national census national census about 1.3 billion on the 2007 numbers Population 1.3 billion a population of over 1.3 billion population demographics 1.3 billion over 1.3 billion citizens 1.3 billion 1.35 Billion people China's population over 1.3 billion citizens China’s last census 1.3 billion over 1.3 billion citizens Demographics of the People’s Republic of China 1.3 billion a population of over 1.3 billion China's population 2010 statistics 60 procent 1.3 billion Chinese population over 1.3 billion citizens 1.3 billion