Variable	Measurement	Era	Code	N	Source
Population density	Persons per km2	1990	PopulationDensity_1990	79	??
		2005	PopulationDensity_2005	128	World Development Indicators 2007
Population growth	Population doubling time in years	1988	PopulationDoubling_1988	76	Kurian 1992 table 28
	Observed growth in last decade	1970-95	PopulationGrowth1_1970.95	89	UN-HDR 1998 table 41
		1975-2005	PopulationGrowth1_1975.2005	166	UN-HDR 2007 tabel 5
	Estimated growth in next decade	1995-2015	PopulationGrowth2_1995.2015	86	UN-HDR 1998 table 41
		2005-2015	PopulationGrowth2_2005.15	163	UN HDR 2007 table 5
Population size	Millions	1995	PopulationSize_1995	89	UN-HDR 1998 table 41
		2004	PopulationSize_2004	105	World Development Report 2007
		2005	PopulationSize_2005	128
Demography	Estes’ Demography subindex (part of Index of Social Progress): 1. Total population (-), 2. Crude birth rate per 1000 (-), 3. Death rate per 1000 (-), 4. Population growth (-), 5. % below age 15 (-)	1979-1980	PopulationPressure_1980	47	Estes 1984 table 5-1

Related topics: Age composition, Birth pattern, Life expectancy, Mortality, Urbanization
Related themes: Demography

The dataset States of Nations is about characteristics of countries in periods (macro variables). It is part of the World Database of Happiness. Developed for the identification of societal conditions for happiness, the source can also be used for other purposes.