The standards for rail are just as stringent as in aviation or marine or pipeline. There are 10 criteria In our regulations, and if any one of those 10 criteria applies, then there's an obligation to report the incident, the accident, whatever the case might be. Most of the time we find a multiple of those criteria apply to a particular situation, so pretty well all the occurrences are reported.
In the rail mode, over 1,000 occurrences were reported in the past year. That figure has increased from the previous year by 4% in the number of reported occurrences in 2013 compared to 2012.