A recent Pew Research Center report on changes in the demographic characteristics of mothers of newborns found that from 1990 to 2008 the proportion of new mothers ages 35 or older rose to 14% from 9%; that the nonwhite share rose to 47% from 35%; and that the unmarried share rose to 41% from 28%. Thanks in part to rising educational attainment, more than half of mothers of newborns (54% in 2006) have at least some college education, compared with 41% in 1990.