How many states require high school students to take classes in economics?

The answer seems to be twenty, seventeen for personal finance.  Here is a full report on that topic (pdf).  Most of those states are in the South, plus CA, NY, IN, and MI.  Virginia is often considered the national leader with regard to actual substance and quality.

Here is my previous post on economics education in high school.

The pointer is from Carrie Sheffield, founder of the web site Bold.