| Percentage of mothers with children | |||
|---|---|---|---|
| Year | Under 18 years | 6 to 17 years | Under 6 years1 |
| 1955 | 27.0 % | 38.4 % | 18.2 % |
| 1965 | 35.0 | 45.7 | 25.3 |
| 1975 | 47.4 | 54.9 | 39.0 |
| 1980 | 56.6 | 64.3 | 46.8 |
| 1985 | 62.1 | 69.9 | 53.5 |
| 1986 | 62.8 | 70.4 | 54.4 |
| 1987 | 64.7 | 72.0 | 56.7 |
| 1988 | 65.1 | 73.3 | 56.1 |
| 1989 | 65.7 | 74.2 | 56.7 |
| 1990 | 66.7 | 74.7 | 58.2 |
| 1991 | 66.6 | 74.4 | 58.4 |
| 1992 | 67.2 | 75.9 | 58.0 |
| 1993 | 67.0 | 75.4 | 57.9 |
| 1994 | 68.4 | 76.0 | 60.3 |
| 1995 | 69.7 | 76.4 | 62.3 |
| 1996 | 70.2 | 77.2 | 62.3 |
| 1997 | 72.1 | 78.1 | 65.0 |
| 1998 | 72.3 | 78.4 | 65.2 |
| 1999 | 72.1 | 78.5 | 64.4 |
| 2000 | 72.9 | 79.0 | 65.3 |
| 2001 | 72.7 | 79.4 | 64.4 |
| 2002 | 72.2 | 78.6 | 64.1 |
| 2003 | 71.7 | 78.7 | 62.9 |
| 2004 | 70.7 | 77.5 | 62.2 |
1. May also have older children.
NOTE: 1955 data are for April; 1965 and 1975–1994 data are for March. Data for 1994 and subsequent years are not directly comparable to previous years because of major revisions to the survey.
