Table:
|  | 2019 | 2018 | 2017 |
| --- | --- | --- | --- |
| At 31 March | £m | £m | £m |
| Current liabilities |  |  |  |
| Listed bonds | 1,367 | 1,702 | 1,539 |
| Finance leases | 16 | 18 | 15 |
| Bank loans | – | – | 352 |
| Other loans and bank overdrafts a | 717 | 561 | 726 |
| Total current liabilities | 2,100 | 2,281 | 2,632 |
| Non-current liabilities |  |  |  |
| Listed bonds | 14,586 | 11,789 | 9,866 |
| Finance leases | 190 | 205 | 214 |
| Other loans | – | – | 1 |
| Total non-current liabilities | 14,776 | 11,994 | 10,081 |
| Total | 16,876 | 14,275 | 12,713 |
Paragraphs:
25. Loans and other borrowings continued
Loans and other borrowings are analysed as follows:
a Includes collateral received on swaps of £638m (2017/18: £525m, 2016/17: £702m).
The carrying values disclosed in the above table reflect balances at amortised cost adjusted for accrued interest and fair value adjustments to the relevant loans or borrowings. These do not reflect the final principal repayments that will arise after taking account of the relevant derivatives in hedging relationships which are reflected in the table below. Apart from finance leases, all borrowings as at 31 March 2019, 2018 and 2017 were unsecured.
Question:
What is the average Finance leases for 2017-2019?
Answer: (16 + 18 + 15) / 3 = 16.33