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Definition:
	
	
Low-level terms:
	
									
	
			
	
		Natural increase
Definition:
The difference between the number of live births and the number of deaths in a given period.
Low-level terms:
					Contact person on methodology:
GUS – Departament Badań Demograficznych
e-mail:
						GUS – Departament Badań Demograficznych
e-mail: