"A database somewhere in his lower intestine"

Iowahawk gets serious, and does some serious damage to Paul Krugman.
Mr. Krugman (please note - I don't call anyone "Doctor" unless they can write me a prescription for drugs) doesn't mention where he gets his dropout statistic from. I suspect a database somewhere in his lower intestine. So I endeavored to find most detailed / recent / comprehensive state-by-state dropout table, which appears to be this 2006-7 report from the National Center for Education Statistics.

Event Dropout Rates for 9th-12th graders during 2006-7 school year:
White students: Texas 1.9%, Wisconsin 1.2% (national average 3.0%)
Black students: Texas 5.8%, Wisconsin 7.8% (national 6.8%)
Hispanic students: Texas 5.6%, Wisconsin 5.2% (national 6.5%)
h/t DaTech Guy