for the year ended 31 March 2006
| The principal exchange rates used were as follows: | Average | Closing | |||
| 2006 | 2005 | 2006 | 2005 | ||
| Sales of goods | 1.79 | 1.85 | 1.74 | 1.88 | |
| Euro | 1.46 | 1.47 | 1.44 | 1.45 | |
Assets and liabilities of overseas undertakings are translated into sterling at the rates of exchange ruling at the balance sheet date and the income statement is translated into sterling at average rates of exchange.