China had nearly 1.3 billion people in 2000.
Nearly one out of every five people on Earth is Chinese.
In 2000, the United States was the world’s third largest country in population, but China still had more than four and a half times as many people.
China and the United States cover about the same amount of land area.
Can you imagine 1 billion people? One way is to consider that 1 billion seconds equal 31.7 years.
The People’s Republic of China’s one-child policy implemented since 1979 has helped to prevent several million births, which has resulted in a large population with a relatively small number of youth.