The follow-up on that is simply that.... We get between 3,500 and 4,000 occurrences reported to us per year in all modes. All of those occurrences are assessed, documented and analyzed to determine if we're going to deploy a team, and then, once we've deployed, what level of investigation we are going to do. We have various levels of investigation, from fact-based, which is a level four, to a major investigation, which is a level two.
All of the occurrences that have been reported to us are assessed, documented and reported in our statistics. If we see a flurry of a similar type of occurrences, for example, we could use them to inform a future investigation.