The number was 6,000 between 1995 and 2012, between the U.S. and the European patent offices.
In Canada we have about 5,400 patents that we've filed. In the last five years we averaged about 650. Canada is a country of second filing. We probably file more than most companies do in Canada, the reason being that filing patents is expensive. The cost to enforce patent rights is even more expensive, so we usually tend to do it in terms of market size, where the country is bigger—thus the U.S. and the European Union, where the market size is larger.