81
Percentage of women 40 to 44 years old who are mothers. In 1980, 90% of women in that age group were mothers.

from Mothers by the Numbers.

A lot of scrapbooking is set up for the mother/child family relationship. There's a market out there, folks, for the aunties. There aren't a whole lot of men scrapbooking at all yet. There's another market. Remember, you saw it here first!