This information appears as the first row of the table. Source links to the full citation and to a link for additional information on primary sources, if available. Source information follows the table and can also be accessed by scrolling. Footnotes display as superscript numbers to the data. Footnotes are not links.
All notes appear in a list following the table.
This information appears in a running list by country following the citation information. For some measures, the database contains data from more than one publication or more than one year. The table maker will display the most recent data in the database for each country. If the countries selected result in a combination of data from an older and a newer publication, two columns will display. The column headings will be identical, but the source line immediately below the column heading will indicate different years.