table 1

Average Demographic Characteristics, Mothers of Five-year-olds

	1980	2000	1980	2000
	Single Mothers		Married Mothers
	Youngest Child is Five Years Old
Age	30.3	32.23	32.3	35.33
Central city	0.32	0.12	0.16	0.09
White	0.67	0.56	0.89	0.78
Number of children
Age 0 to 5	1	1	1	1
Age 6 to 12	0.79	0.63	0.96	0.8
Age 13 to 17	0.27	0.27	0.30	0.27
Age 18 +	0.06	0.05	0.07	0.04
Number of household members
Age 0 to 17	0.06	0.08	0.03	0.13
Age 18 +	0.20	0.31	1.06	1.11
HSD	0.43	0.31	0.48	0.25
Some college	0.18	0.38	0.18	0.34
BA degree	0.04	0.09	0.09	0.2
Grad degree	0.03	0.03	0.05	0.08
N	10,928	43,199	53,300	148,264
	Youngest Child is Younger Than Five
Age	27.2	28.11	29.0	32.11
Central city	0.38	0.14	0.16	0.1
White	0.56	0.46	0.89	0.8
Number of children
Age 0 to 5	2.27	2.24	2.24	2.2
Age 6 to 12	0.63	0.54	0.51	0.42
Age 13 to 17	0.13	0.13	0.07	0.08
Age 18 +	0.02	0.02	0.01	0.01
Number of household members
Age 0 to 17	0.06	0.07	0.02	0.08
Age 18 +	0.18	0.35	1.06	1.11
HSD	0.39	0.33	0.44	0.22
Some college	0.12	0.29	0.19	0.32
BA degree	0.02	0.05	0.10	0.24
Grad degree	0.01	0.02	0.05	0.09
N	6,878	23,066	52,286	123,354

Notes: Based on the author’s calculations using the 1980 Census PUMS and the 2000 Restricted Access Long Form Data. The presented statistics are mean values in the sample of mothers of five-year-olds (see text for sample construction). The education variables represent percents of the population with each amount of education, where the omitted category is those who did not finish high school.