The service sector, which is less capital-intensive, employs a bigger share of the workforce in Britain than it does in Germany, for instance but againthat does not explain the gap with America.
The world has certainly changed substantially since 2005 and he has had to change with it - no more sunshine winning the day and sharing the proceeds of growth - but it is still noteworthy that he felt the need to explain himself once again.
He'll be pushed again and again to explain in what - if any - circumstances he might declare that any new deal with Europe was not enough and Britain should leave.