Source: World Bank
Release: World Development Indicators
Net migration is the net total of migrants during the period, that is, the total number of immigrants less the annual number of emigrants, including both citizens and noncitizens. Data are five-year estimates.
World Bank Source: United Nations Population Division, World Population Prospects.
Source Indicator: SM.POP.NETM
World Bank, Net migration for Bulgaria [SMPOPNETMBGR], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/SMPOPNETMBGR, November 23, 2017.