Comparison of questions asked in 1959, 1970, 1979, 1989 censuses

		1959	1970	1979	1989
1.	Relation to the head of the family	+	+	+	–
2.	Relation to the member of the family written first	–	–	–	+
3.	Sex	+	+	+	+
	Temporarily absent
4.	Cause of absence	–	+	+	+
5.	Period of absence	+	+	+	+
	Temporarily present
6.	Place of permanent residence	+	+	+	+
7.	Period of absence from there	+	+	+	+
8.	Age	+	+	+	+
9.	Date of birth	–	+	+	+
10.	Place of birth	–	–	–	+
11.	Marital status	+	+	+	+
12.	Nationality	+	+	+	+
13.	Citizenship	+	+	+	+
14.	Native language	+	+	+	+
15.	Another language the respondent freely commands	–	+	+	+
16.	Education	+	+	+	+
17.	Graduation from vocational training institution	–	–	–	+
18.	Type of current educational institution the respondent is attending	+	+	+	+
19.	Source of living	+	+	+	–
20.	Sources of living	–	–	–	+
21.	Place of work	+	s	s	s
22.	Occupation	+	s	s	s
23.	Social group	+	s	s	s
24.	For those who did not work a full year write the duration of work	–	s	–	–
25.	Duration of permanent residence in a given settlement	–	s	s	s
26.	Place of previous permanent residence (urban or rural)	–	s	–	s
27.	Cause of changing place of residence	–	s	–	–
	For women:
28.	The number of children born	–	–	s	s
29.	The number of children surviving	–	–	–	s
30.	Period of dwelling construction	–	–	–	+
31.	Material outward walls are made of	–	–	–	+
32.	Owner of dwelling	–	–	–	+
33.	Type of dwelling	–	–	–	+
34.	Installations of the dwelling	–	–	–	+
35.	Number of rooms	–	–	–	+
	Floor space (sq. m)
36.	Total	–	–	–	+
37.	Living space	–	–	–	+