1. World Population
   1. population: 6.77 (2008)
   2. Growth rate: 1.14% (2008)
   3. doubling time: 61 years
   4. fastest population growth rate: > 1.8% during the 1950
2. Countries
   1. china
      1. Population: 1.4 billion (2009 est)
      2. Growth rate: 0.629% (2008 est.)
      3. Doubling time: 111 years
      4. Area: 9.6 million sq. km
   2. India
      1. Population: 1.1 billion (2009 est)
      2. Growth rate:1.548% (2009 est
      3. Doubling time: 45 years
      4. Area: 3 291 000 sq. km
   3. Nepal
      1. Population: 30 million (2009 est)
      2. Growth rate: 1.99% (2006 est.)
      3. Doubling time: 35 years
      4. Area: 147181 sq. km
   4. Nigeria
      1. Population: 140 million (2006 est.)
      2. Growth rate: 2.5% (2008 est.)
      3. Doubling time: 28 years
      4. Area: 924 000 sq. km