Between December 19, 2013 and October 21, 2014, the December 2013 Release Notes and the country source information for Estonia indicated an update of data for that country. However, the data for Estonia were not updated in the December 2013 release. As of October 21, 2014, both the Release Notes and source information have been edited to reflect the fact that data for Estonia were not updated. New estimates and projections for Estonia will be incorporated in the next update of the IDB, currently planned for 2015.
Data for Guyana and Nigeria posted on the IDB in June 2009 and June 2011, respectively, incorrectly incorporated the effect of HIV/AIDS on the populations of those countries. The data posted for Guyana and Nigeria as of December 19, 2013 correctly incorporate the effect of HIV/AIDS.
The data for Thailand posted in June 2010 on the IDB did not show the impact of HIV/AIDS on the population. The data posted for Thailand as of December 28, 2010 incorporate the impact of HIV/AIDS on the population.
In the version of the IDB prior to June 28, 2010, there was an error in the output of infant deaths by sex from the Region tab for the table "Life Expectancy, Infant Mortality Rate, and Infant Deaths." The figures for male infant deaths were shown under the label "Infant Deaths: Female" and vice versa. This happened when either 1) countries were requested from the Regions tab or 2) regions were requested and the individual country data were downloaded through the Excel or CSV download. This problem has been corrected as of June 28, 2010.