Worldwide

AD 1970 – 2,000,000
AD 1980 – 40,000,000
AD 2000 – 119,910,000

Europe

AD 1970 – 40,000
AD 1980 – 2,920,000
AD 2000 – 11,021,000

Asia

AD 1970 – 20,000
AD 1980 – 4,000,000
AD 2000 – 16,422,000

North America

AD 1970 – 1,220,000
AD 1980 – 12,000,000
AD 2000 – 9,742,000

Oceania

AD 1970 – 2,000
AD 1980 – 80,000
AD 2000 – 350,000

Latin America

AD 1970 – 716,000
AD 1980 – 20,000,000
AD 2000 – 73,604,000

Africa

AD 1970 – 2,000
AD 1980 – 1,000,000
AD 2000 – 8,771,000

Antarctica

AD 1970 – 1
AD 1980 – 10
AD 2000 – 100