<http://schema.org/about>
"Between 2000 and 2008, the percentage of new mothers who said they breast-fed their infants increased from 70.3 percent to 74.6 percent."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/family/babies-pregnancy/stories/more-us-mothers-breast-feeding-cdc-says>