NOTES TO THE INCOME STATEMENT

6. Other operating expenses
2016 2015
Rents/leases -13.2 -16.1
Losses on disposal of non-current assets -0.2 -1.1
R&D costs -6.6 -5.1
Non-statutory staff costs -11.7 -12.3
Energy -35.4 -37.0
Maintenance -38.1 -39.6
Advertising, marketing and entertainment costs -23.2 -21.5
Service, information management and office costs -25.5 -25.5
Other expenses -33.7 -35.8
Total other operating expenses -187.5 -193.9
Audit fees
The Group’s audit fees paid to independent auditors are presented in the table below. The audit fees are in respect of the audit of the annual accounts and legislative functions closely associated therewith. Other expert services include tax consulting and advisory services in corporate arrangements.
2016 2015
Audit fees -0.6 -0.4
Tax consultation -0.0 0.0
Other fees -0.4 -0.1
Audit fees, total -1.0 -0.5