populationIdentifier,name,targetISOKey,birthRate,deathRate,timePeriod,populationGroups
human,DemographicModel,,4.0E-5,3.9E-5,86400000,[org.eclipse.stem.populationmodels.standard.impl.PopulationGroupImpl@572515db (identifier: men  fraction: 0.5)  org.eclipse.stem.populationmodels.standard.impl.PopulationGroupImpl@43be098f (identifier: women  fraction: 0.5)]