overall trends in childbearing
47% of all children born outside of marriage
women having children later = 28 vs 24 in 1971
average number of children per women fell to 1.6 in 2001 from 2.95 in 1964
predicted that 1/4 of women born in 1973 will be childless at age 45
2024 = mean age of childbearing is 31