15 Other liabilities, accruals and deferred income

The specification of the other liabilities, accruals and deferred income is shown in the following table.

(x EUR million)	2016	2015

Staff costs	15.1	11.8
Lease costs	19.7	16.8
Interest and bank costs	5.8	7.6
Accruals	3.6	1.8
Revenue invoiced in advance	49.3	50.3
Other liabilities	65.8	35.0

Book value as per 31 December	159.3	123.3