In terms of the average age for infrastructure, the best data that's available to us is from Statistics Canada. They use a number of key variables to determine the average age. They look at the amount of investment that's made in public infrastructure. They also look at the year in which the investment was made, and they also look at what we call year-end gross capital stock. Year-end gross capital stock is measured by value, not by the number of units. It's not by the number of assets that you have; it's the value of the assets that you look at.
On May 5th, 2015. See this statement in context.