HC Deb 24 July 1978 vol 954 cc550-2W
Mr. John Moore

asked the Secretary of State for Social Services what was the total number of returns made in each census for which figures are available; and what 100 per cent. would have produced in numbers of total returns for the same period.

Mr. Moyle

A single return may apply to a person, a household, or an institution; the number of returns is not available but the number of persons in England and Wales returned in recent censuses has been:

1951 43,757,888
1961 46,104,548
1971 48,749,575

The census in this country covers an overwhelming proportion of the population. In 1951 and 1961 the estimated percentage covered was 99.69 and 99.98 respectively. In 1971 a detailed study was undertaken and it was estimated that there had been a net over-enumeration of 0.01 per cent.; this was attributed to persons being returned as present on census night at more than one address.

Mr. John Moore

asked the Secretary of State for Social Services how many compulsory questions were asked in each of the censuses for which such details are available.

Mr. Moyle

Using, so far as practicable, a comparable definition of what constitutes a single question, the numbers of questions—or parts—asked at each census in England from 1841 onwards have been as follows:

1841 8
1851 8
1861 8
1871 8
1881 8
1891 12
1901 11
1911 17
1921 13
1931 11
1951 20
1961 33
1971 32

In Wales, there has been an additional question on Welsh language from 1891 onwards.

Mr. John Moore

asked the Secretary of State for Social Services what was the cost of the census for each census for which figures are available.

Mr. Moyle

The cost charged to the Census Vote of the General Register Office for England and Wales is as follows:

£000
1851 94
1861 96
1871 120
1881 123
1891 121
1901 148
1911 162
1921 351
1931 300
1951 1,550
1961 3,100
1971 13,500

From 1951 the figures include also sums chargeable to the Votes of Departments other than the General Register Office.

Mr. John Moore

asked the Secretary of State for Social Services why there was no discussion in the White Paper on the 1981 census, Command Paper No. 7146, on how much of a census needs to be compulsory as opposed to voluntary.

Mr. Moyle

The Census Act 1920 provides no basis for voluntary questions.