1911 Census of England and Wales, General Report with Appendices, Table 71: " Tenements of Various Sizes &C., in the Aggregates of Urban and of Rural Districts at the Censuses of 1891, 1901 and 1911".

Rooms per
Tenement.
Proportion
per cent. Of
total tenements.
Proportion
per cent. of
total population.
Average number
of occupants
per room.
Tenements with more than two
occupants per room.
Proportion per cent.
of total tenements.
Proportion per cent.
of total population
living in such tene-
ments.
  1891. 1901. 1911. 1891. 1901. 1911. 1891. 1901. 1911. 1891. 1901. 1911. 1891. 1901. 1911.
          Aggregate of Urban Districts.          
1 6.2 4.5 3.9 2.9 2.0 1.7 2.24 2.03 1.91 2.0 1.2 0.9 1.6 1.0 0.7
2 12.6 10.4 9.0 9.4 7.4 6.5 1.77 1.67 1.62 3.5 2.4 1.9 4.4 3.1 2.5
3 12.6 11.5 14.1 11.5 10.3 12.7 1.45 1.39 1.36 2.1 1.6 1.7 3.5 2.6 3.0
4 22.4 21.7 24.0 22.4 21.2 23.1 1.19 1.14 1.10 1.4 1.1 1.0 2.8 2.2 2.2
Total 1-4 53.8 48.1 51.0 46.2 40.9 44.0 1.39 1.30 1.25 9.0 6.3 5.5 12.3 8.9 8.4
          Aggregate of Rural Districts.          
1 1.0 0.6 0.6 0.4 0.2 0.2 2.16 1.77 1.57 0.3 0.1 0.1 0.3 0.1 0.1
2 8.3 6.0 5.5 5.6 3.9 3.5 1.58 1.47 1.40 1.9 1.1 0.9 2.5 1.5 1.2
3 11.7 9.7 12.9 10.1 8.1 10.8 1.33 1.26 1.24 1.6 1.1 1.3 2.8 2.0 2.2
4 27.7 25.8 27.7 26.3 24.0 25.5 1.10 1.05 1.02 1.4 1.0 1.0 2.9 2.2 2.1
Total 1-4 48.7 42.1 46.7 42.4 36.2 40.0 1.21 1.13 1.10 5.2 3.3 3.3 8.5 5.8 5.6