Source: World Bank  

Release: World Development Indicators  

Units:  Number per 1,000 Live Births, Not Seasonally Adjusted

Frequency:  Annual

Infant mortality rate is the number of infants dying before reaching one year of age, per 1,000 live births in a given year.

Nations that are included in this data series are listed at http://data.worldbank.org/about/country-and-lending-groups. A developing nation is defined as one which falls within the lower or middle income bracket.

Source Indicator: SP.DYN.IMRT.IN