The table shows all of Country M's transactions with the rest of the world during one year.
| Transaction | Value (£ billion) |
|---|---|
| Machinery sold to customers abroad | 84 |
| Food and fuel bought from suppliers abroad | 61 |
| Spending by foreign tourists in Country M | 26 |
| Spending by Country M's residents on holidays abroad | 34 |
| Interest received by Country M's residents from assets abroad | 7 |
| Profits transferred abroad by foreign owners of businesses in Country M | 9 |
| Grants received from abroad | 2 |
| Foreign aid sent abroad | 5 |
| A business from abroad bought a factory in Country M | 15 |
Calculate Country M's current account balance for the year.