Right.
The Cullen commission currently under way in British Columbia is attempting to do that, I think, so it will be interesting to see what their report says. Many people have tried. I'm not an economist and I'm not accountant, so I don't try. For one thing, there are so many different factors involved. It's not as if all of this data is transparent. Drug-trafficking organizations don't tell you. They don't supply financial statements.
We generally rely on the IMF and the World Bank, which estimates the percentage of GNP that is related to illegality, to criminal activity. I believe the figure is somewhere in the area of 3% to 5%. You also have to consider that we have not the grey market, and it quickly gets meshed in with criminal money, so it's an underground economy.