Latvian censuses: 1913, 1925,1930, 1935, 1970, 1989

Stolen from comments to timbes5 Live Journal

historic Latvian census results
I take a liberty to point to some Latvia's census results:
1) census in Riga and environs in 1913
2) Latvian census of 1925
3) Latvian census of 1930
4) Latvian census of 1935
5) USSR census of 1970 in Latvia
6) USSR census of 1989 in Latvia
Also I'd like to mention Latvian Statistical Atlas of 1938 which was published on 20th anniversary of Latvian independence:

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Numbers of censuses 1913-1935 (4 in 22 years) and then (4 in 30 years) demonstrate an obvious difference between national and communist government. The most important is delay from 1945 to 1959.
+ there are no 1959 and 1979 censuses