| The CIA Factbook estimated that as of 2013 Other sources report differing estimates. |
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| The twenty largest countries by tertiary output in 2015, according to the IMF and CIA World Factbook. |
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| The Factbook is available in the form of a website that is partially updated every week. |
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| The twenty largest countries by tertiary output in 2016, according to the IMF and CIA World Factbook. |
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| The twenty largest countries by agricultural output in 2015, according to the IMF and CIA World Factbook. |
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| The CIA World Factbook lists widespread crime and underground economic activity among major issues in Moldova. |
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| According to The World Factbook, Macau has the fourth highest life expectancy in the world. |
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| In 2008 the CIA discontinued printing the Factbook themselves, instead turning printing responsibilities over to the Government Printing Office. |
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| Many Internet sites use information and images from the CIA World Factbook. |
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| Scholars have acknowledged that some entries in the Factbook are out of date. |
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| According to the CIA World Factbook, the Cayman Islands GDP per capita is the 14th highest in the world. |
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| According to the CIA World Factbook, from 2010 to 2011, the unemployment rates in Spain, Greece, Italy, Ireland, Portugal, and the UK increased. |
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| According to the CIA World Factbook, Norway is a net external creditor of debt. |
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| Generally, information currently available as of January 1 of the current year is used in preparing the Factbook. |
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| According to The World Factbook, Macau has the fourth highest life expectancy in the world, while its infant mortality rate ranks among the lowest in the world. |
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| In researching the Factbook, the CIA uses the sources listed below. |
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| However, the CIA requests that it be cited when the Factbook is used. |
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| As of July 2011, The World Factbook consists of 267 entities. |
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| Another serious problem is that the Factbook never cites its sources, making verification of the information it presents difficult if not impossible. |
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| The World Factbook uses the same definition adding Slovenia too. |
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