Demographics
Since the Neolithic period the native inhabitants of the Lithuanian territory have not been replaced by any other ethnic group, so there is a high probability that the inhabitants of present day Lithuania have preserved the genetic composition of their forebears relatively undisturbed by the major demographic movements, although without being actually isolated from them. The Lithuanian population appears to be relatively homogeneous, without apparent genetic differences among ethnic subgroups.
A 2004 analysis of MtDNA in the Lithuanian population revealed that Lithuanians are close to the Indo-European and Uralic-speaking populations of Northern Europe. Y-chromosome SNP haplogroup analysis showed Lithuanians to be closest to Latvians, Estonians, and Finns.
According to 2009 estimates, the age structure of the population was as follows: 0–14 years, 14.2% (male 258,423/female 245,115); 15–64 years: 69.6% (male 1,214,743/female 1,261,413); 65 years and over: 16.2% (male 198,714/female 376,771). The median age was 39.3 years (male: 36.8, female: 41.9).
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