A few excerpts from the latest Harper's Index:

• Number of American civilians who died worldwide in terrorist attacks last year: 8

• Percentage of Americans who say they believe the war in Afghanistan has been worth fighting: 34

• Number of companies in which Senate Armed Service Committee staffers are prohibited from owning stock: 48,096

• The Senators themselves: 0

• Percentage of U.S. households that are shared by more than one family: 13

• Portion of single or widowed Americans who receive all their income from Social Security: 1/4