The Washington Post’s Dana Milbank does the values math and gets some slightly different figures:

Many religious conservatives have asserted that Bush owes his victory to values voters. That is partially true; more voters (22 percent) said their top issue was moral values than any other single issue, and an anti-gay-marriage ballot initiative in Ohio helped Bush win that crucial state. But, according to exit polls, moral issues ranked below national security issues (34 percent when terrorism and Iraq were taken together) and economic issues (25 percent when combined with taxes).