CDB Sources

• Sources are organizations, databases and publications from which this database draws its data. A source provides at least one series. There are also sources which provide many more - 100 and up. A given series is always associated with exactly one source. There may be however series with similar definitions produced by different sources. An example may be the different types of GDP data (current and constant prices, national currency and US dollars) produced by different organizations.
  
• One can click on a source name to go to the "Source details" page. The "Source details" page lists the series of the source. For each series, the range of years for which data are available as well as the number of countries for which the series has data are listed. Please note that the range of years does not indicate that data are available for every year of the range, nor that all countries have data for all years.
  
• Clicking on the number of the countries that have data for a given series, brings up the list of these countries. Each country in this list is clickable and clicking on the country name would display all the data for the given series and country. Use this facility to explore the data availability in details.
  
• Clicking on a series name leads to the "Series details" page. This page contains the description of the series, the classifications used if any, as well as links to the definitions associated with the series.
  
• The link "Select these series...." (on top of the series list) would bring you to the first step of the "Advanced data selection" process with the series of the source already selected. You can then add additional series and/or remove series and complete the "Advanced data selection" process to extract the data in one or more of the available formats.