4. World and Population Statistics World Population: 6.5 Billion-2006 World Population Information
5. World Population Clock 2005 Source: Population Reference Bureau, 2005 World Population Data Sheet . 137 151 2 154 Minute 197,004 217,971 3,383 221,354 Day 71,906,587 79,559,311 1,234,907 80,794,218 Year Less Developed Countries (less China) Less Developed Countries More Developed Countries World Natural Increase per
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8. World Population Growth, in Billions Number of years to add each billion (year) All of Human History (1800) 130 (1930) 30 (1960) 15 (1975) 12 (1987) 12 (1999) 14 (2013) 14 (2027) 21 (2048) Sources: First and second billion: Population Reference Bureau. Third through ninth billion: United Nations, World Population Prospects: The 2004 Revision (medium scenario), 2005.
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10. World Population Growth Through History A.D. 2000 A.D. 1000 A.D. 1 1000 B.C. 2000 B.C. 3000 B.C. 4000 B.C. 5000 B.C. 6000 B.C. 7000 B.C. 1+ million years 8 7 6 5 2 1 4 3 Old Stone Age New Stone Age Bronze Age Iron Age Middle Ages Modern Age Black Death — The Plague 9 10 11 12 A.D. 3000 A.D. 4000 A.D. 5000 1800 1900 1950 1975 2000 2100 Future Billions Source: Population Reference Bureau; and United Nations, World Population Projections to 2100 (1998).
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13. Projected Population Change, by Country Source: Population Reference Bureau, 2005 World Population Data Sheet . Percent Population Change, 2005-2050
14. Source: United Nations, World Population Prospects: The 2004 Revision (2005). World population, 1950-2050 (projected) Global Population Growth: A Developing-Country Phenomenon
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17. Trends in Population Growth Worldwide Population Increase and Growth Rate, Five-Year Periods Millions Percent increase per year Source: United Nations, World Population Prospects: The 2004 Revision (medium scenario), 2005.
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22. Birth and Death Rates, Worldwide Rates of birth, death, and natural increase per 1,000 population Natural Increase Source: United Nations, World Population Prospects: The 2004 Revision , 2005.
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26. 10 Places With the Lowest Total Fertility Worldwide Average number of children per woman, 2000-2005 Source: United Nations, World Population Prospects: The 2004 Revision , 2005.
27. Women of Childbearing Age Number of Women 15 to 49 Billions Source: United Nations, World Population Prospects: The 2004 Revision (medium scenario), 2005.
28. Women of Childbearing Age and Fertility Worldwide Source: United Nations, World Population Prospects: The 2004 Revision (medium scenario), 2005.
29. Diverging Trends in Fertility Reduction Average number of children per woman Source: United Nations, World Population Prospects: The 2004 Revision , 2005.
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32. Birth and Death Rates, Worldwide Rates of birth, death, and natural increase per 1,000 population Natural Increase Source: United Nations, World Population Prospects: The 2004 Revision , 2005.
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34. Trends in Life Expectancy, by Region Life Expectancy at Birth, in Years Source: United Nations, World Population Prospects: The 2004 Revision (medium scenario), 2005.
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38. Birth and Death Rates, Worldwide Rates of birth, death, and natural increase per 1,000 population Natural Increase Source: United Nations, World Population Prospects: The 2004 Revision , 2005.
41. Age Distribution of the World’s Population Population Structures by Age and Sex, 2005 Millions Less Developed Regions More Developed Regions Male Female Male Female 80+ 75-79 70-74 65-69 60-64 55-59 50-54 45-49 40-44 35-39 30-34 25-29 20-24 15-19 10-14 5-9 0-4 Age Source: United Nations, World Population Prospects: The 2004 Revision , 2005.
59. Trends in Urbanization, by Region Urban Population Percent Source: United Nations, World Urbanization Prospects: The 2003 Revision (medium scenario), 2004.
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62. 54 107,000,000 Mexico 11 337 127,000,000 Japan 10 139 131,530,000 Nigeria 9 8 142,800,000 Russia 8 1,002 145,000,000 Bangladesh 7 202 164,000,000 Pakistan 6 21 186,405,000 Brazil 5 126 222,781,000 Indonesia 4 30 300,000,000 United States 3 328 1,110,000,000 India 2 136 1,315,844,000 China 1 43 6,661,208,350 World — Density (people/ km²) Population Country Rank
83. Source: U.S. Census Bureau, 1990 decennial census. In 1990, Almost Half of All U.S. Counties Had Less Than 1% Foreign-Born, and Only One-Tenth Had 5% or More.
84. Source: U.S. Census Bureau, 2000 decennial census. By 2000, Only One-Fourth of U.S. Counties Had Less Than 1% Foreign-Born, and One in Five Had 5% or More.
128. 1997-2004* Physicians per 1,000 people Availability of Doctors, Selected Countries * Data are for the most recent year available for each country. Source: World Bank, World Development Indicators 2006 .