According to the latest data from the Centers for Disease Control and Prevention's National Center, first-time mothers are older than they were four decades ago; in 2012, there were more than nine times as many first births to mothers 35 and older than there were in the 1970s. The report also indicated that over the past two decades first birth rates rose for older women of all races and Hispanic origins. The report failed to outline the reasons behind the trend, though it may have a great deal to do with economics.