Our scientists gather information through periodic or continuous measurement in the field to provide a view of current conditions. In some instances, observations may not be subject to rigorous review before release; this will be noted in the documentation accompanying the data.
World development indicators (WDI) is the World Bank's annual compilation of data about development. Provides direct access to development indicators, with time series for 208 countries and 18 country groups from 1960 to 2001.
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