We survey the firms and ask them where they're investing, where they own other companies, and where they own other financial assets—stocks, bonds, or whatever. If they own more than 10% of an entity outside Canada, then that's part of foreign direct investment. The criteria is 10%, but over 85% of foreign direct investment is in firms where there's a majority ownership situation. The Canadian or foreign firm coming in owns more than 50% of the voting power in the firm.
When you're looking at foreign direct investment data, you're mostly talking about ownership and control of a firm in another country. By dividing that out, you can see where there may be Canadian companies investing in an ownership and control sense in certain other countries, as opposed to just buying some stocks and bonds to invest in your retirement savings plan, or whatever. This helps to identify where that kind of ownership investment is happening.