Statistics Norway

14   Number of children distributed, by age and cohort1. Per cent
  Cohort of births Nubmer of children Average number of children2
  0 1 2 3 4
Age of mother 20 years              
  1935 82.6 14.9 2.4 0.1 0.0 0.20
  1940 79.6 16.9 3.2 0.3 0.0 0.24
  1945 78.4 17.2 4.1 0.3 0.0 0.26
  1950 76.7 19.0 4.0 0.3 0.0 0.28
  1955 77.4 19.7 2.8 0.1 0.0 0.26
  1960 84.1 14.3 1.6 0.1 0.0 0.18
  1965 88.2 10.5 1.1 0.1 0.0 0.13
  1970 89.2 9.7 1.0 0.1 0.0 0.12
  1975 91.5 7.7 0.8 0.1 0.0 0.09
  1980 92.6 6.8 0.6 0.0 0.0 0.08
  1983 93.8 5.7 0.4 0.0 0.0 0.07
Age of mother 25 years              
  1935 36.9 31.2 24.2 6.4 1.3 1.04
  1940 34.8 28.5 26.4 8.1 2.2 1.14
  1945 33.3 29.4 27.3 8.2 1.8 1.16
  1950 34.4 32.0 27.4 5.4 0.7 1.06
  1955 43.2 30.6 22.7 3.2 0.4 0.87
  1960 52.4 27.6 17.2 2.5 0.3 0.71
  1965 56.2 26.9 14.2 2.4 0.3 0.64
  1970 60.8 24.6 12.3 1.9 0.3 0.56
  1975 67.7 20.7 9.7 1.6 0.3 0.46
  1978 70.2 19.6 8.6 1.4 0.2 0.42
Age of mother 30 years              
  1935 16.9 18.5 35.5 20.2 8.9 1.86
  1940 15.8 16.8 36.0 22.0 9.3 1.92
  1945 15.2 18.4 41.3 19.1 5.9 1.82
  1950 16.9 21.1 44.8 14.3 2.9 1.65
  1955 22.4 23.9 39.4 12.1 2.3 1.48
  1960 26.0 25.1 34.9 11.7 2.3 1.39
  1965 28.6 25.8 32.8 10.7 2.1 1.32
  1970 32.1 26.4 30.4 9.3 1.9 1.23
  1973 36.2 26.4 27.9 7.9 1.6 1.12
Age of mother 35 years              
  1935 11.2 11.9 32.0 26.8 18.1 2.29
  1940 11.0 11.3 34.2 28.0 15.4 2.26
  1945 10.6 12.8 42.2 25.2 9.1 2.09
  1950 11.6 15.0 45.8 21.5 6.0 1.95
  1955 14.5 16.6 42.6 21.0 5.4 1.86
  1960 15.8 16.7 39.5 22.0 6.1 1.86
  1965 16.5 17.3 39.8 20.9 5.6 1.82
  1968 17.0 18.1 40.1 19.6 5.3 1.78
Age of mother 40 years              
  1935 9.8 10.5 30.4 27.4 21.8 2.41
  1940 9.7 10.1 33.9 29.0 17.3 2.34
  1945 9.2 11.9 41.6 26.3 11.0 2.18
  1950 9.7 13.5 45.4 23.3 8.0 2.06
  1955 11.7 14.6 42.1 23.9 7.7 2.01
  1960 12.5 14.1 39.2 25.4 8.7 2.04
  1963 12.8 14.1 39.6 25.1 8.4 2.02
Age of mother 45 years              
  1935 9.6 10.4 30.4 27.4 22.2 2.42
  1940 9.5 10.1 33.7 29.1 17.6 2.35
  1945 9.0 11.8 41.5 26.4 11.3 2.19
  1950 9.4 13.3 45.4 23.5 8.4 2.08
  1955 11.2 14.3 42.1 24.2 8.1 2.04
  1958 11.9 14.0 40.1 25.1 9.0 2.05
1  For the cohorts 1935 to 1950 - women resident in Norway per 31.12.1998. For kohorten 1955 - women resident in Norway per 31.12.2001. For the cohorts 1958 to 1983 - women resident in Norway per 31.12.2003.
2  The figures have been revised 3 October 2005.

Explanation of symbols