I remember reading some studies. There was one, I think by Professor Blais, and I think initially there was a view of about 7%, but I don't know if this has been sustained over time. I may even be wrong about the percentage I'm talking about.
There was a view that it might tend to increase it. I think that is it. However, there is also a view that it would be marginal, so I don't know where the answer is on that front.