Numbers, Facts and Trends Shaping Your World

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    Appendix B: Method

    This report is based on the findings of a survey on Americans’ use of the Internet. The results in this report are based on data from telephone interviews conducted by Princeton Survey Research Associates International from August 7 to September 16, 2013, among a sample of 1,801 adults, age 18 and older. Telephone interviews were […]

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    North America

    Christians are projected to remain the largest religious group in North America in the decades ahead, and their numbers are expected to increase from 267 million as of 2010 to 287 million in 2050.[1. numoffset=”66″ North America includes Bermuda, Canada, Greenland, the Saint Pierre and Miquelon Islands and the United States. (For the purposes of […]

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    1. Demographic and Financial Profiles of People in the U.S., Germany and Italy

    The graying of the population is one of the most significant demographic shifts occurring in the U.S. today. Some 13% of Americans are now ages 65 and older, and that share is projected to rise to 21% by the middle of this century. Population aging has been even more rapid in other developed countries, such […]

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    Social Media Update 2014

    While Facebook remains the most popular social media site, other platforms — like LinkedIn, Pinterest, Instagram and Twitter — saw higher rates of growth over the past year. In 2014, 52% of online adults used two or more social media sites, up from 42% in 2013.

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    Chapter 1: Main Factors Driving Population Growth

    When demographers attempt to forecast changes in the size of a population, they typically focus on four main factors: fertility rates, mortality rates (life expectancy), the initial age profile of the population (whether it is relatively old or relatively young to begin with) and migration. In the case of religious groups, a fifth factor is […]