We took the value-for-money reports and we tried to understand...we compared the conventional-build projects with the PPP projects. The 49% was added on to the conventional-build projects. That was the expected risk of delivering it to the government, of delivering it through the conventional approach to procurement.
What we found was this. For a lot of the projects, if they're design-build-finance, those risks would be primarily the risk of cost overruns. There were a smaller number of projects that included operations and maintenance in the concession, so in those cases that would include risks of poor operation, poor maintenance, the facility not living up to its expectations. That was the average risk premium of the 27 projects we evaluated.
As I mentioned, it's that premium that invariably tilted the balance in favour of the public-private partnership in terms of its quantitative assessment of value for money.