Yes. Through the years, through the tax system, amounts that are written off--for example, through bankruptcy--cannot be reinstated, ever. They are forgiven and all that, and there are about 60,000 bankruptcy cases a year.
Canadians owe creditors and owe taxes, and they come and invoke that piece of legislation. That's been written off. It's gone. It's not in the $18 billion. The $18 billion is what we consider to be currently on the books as collectible or in need of being managed. Then there's an allowance on that $18 billion of about $4 billion that we think is likely to be uncollectible. For example, in the year that we had a blitz on the bookkeeping part of it, we wrote off and processed a lot of the accounts and basically got them off the books.
However, one thing should be said about accounts that are written off for any reason other than bankruptcy. If the ability to pay is ever reinstated, we can bring them back in. We have the ability to reinstate accounts if the taxpayer's ability to pay is regained.