I should be delighted if my hon. Friend's constituents would care to drop me a note with information on their individual salaries. I could do a little costing exercise for them. I am sure that they, like senior nurses, managers, middle managers and other experienced teachers, will all think carefully about what my hon. Friend the Member for Altrincham and Sale (Sir F. Montgomery) has said. He has put before the House an illustration of how the Labour party wants to increase the cost of national insurance. Even under the old Labour scheme somebody on £130 a week would pay £26 in national insurance—employers and employees contributions combined—whereas under the Conservative proposals somebody on the same earnings would pay only £19·24. We will stick by our national insurance arrangements.