The brief gives you an in-depth explanation.
Most consumers are much more value-conscious now than they've ever been. They are price-conscious. A large portion of the population now lives within an hour of the border. We've seen urban growth. It has brought more and more people closer to our U.S. neighbour, so it makes it easier, in fact, to cross and to shop. There's been an effort, even with increased security, to ease the crossing and the returning of shoppers, especially same-day shoppers. It is all of those things.
Also, obviously, there's the difference in pricing between Canadian goods and U.S. goods. All of this has in fact created an increase in cross-border shopping.