We haven't done that specific analysis. Because it's avoidance, it's hard to determine the exact amounts. I don't think there's any international comparison, because the tax systems are also different.
One ballpark amount would be to go into the latest CRA estimates of the tax gap. CRA provides some amounts in percentage of the corresponding tax revenue. I don't think CRA does it in percentage of GDP, but it's an easy calculation. It's something we could do, if requested by the committee with a motion.