| All figures in £ millions | 2008 | 2007 | |
|---|---|---|---|
| At beginning of year | 52 | 17 | |
| Exchange differences | 18 | — | |
| Acquisition of investments | 1 | — | |
| Disposal of investments | (8) | — | |
| Equity interest received on sale of Government Solutions | — | 35 | |
| At end of year | 63 | 52 |
Other financial assets comprise non-current unlisted securities.