We haven't had studies per se on that. We've asked members to look at what the price differences were, but the market has been adapting quite quickly. There are lots of new materials that are alternatives to plastic that have been introduced on the market. As a result, the prices for them have changed as well.
It's hard to pinpoint what the cost implications would be at this point for replacing those single-use items with new ones. Again, the market is evolving really quickly. You can notice that a lot of businesses have adopted cardboard-based and fibre-based containers to replace styrofoam, for instance, in the past couple of years. As a result, those items are not necessarily as expensive as they used to be. They're still more expensive than styrofoam-based containers; I just couldn't tell you how much.