I don't know the answer offhand. As Mr. Murphy indicated, some countries, for whatever cultural, historical, or political reason, such as Italy, Spain, Russia, and Mexico—I hope nobody has heritage in these areas. There is a lot of non-compliance even though in certain of those countries the tax rates are not high at all, especially Mexico, for instance.
So I'm not sure if there is a correlation. As soon as you get up to, say, 90% and above, then certainly we would see a correlation. Let's keep in mind that up into the 1950s, for instance, the highest rate here in the United States was something like 90%. So historically rates were higher than they are today.