Benefit expenses

The following amounts were recognised in the income statement and equity as pension costs:

	Pensions plans		Other long-term benefits
in CHF thousands	2017	2016	2017	2016
Defined benefit costs
Service cost
Current service cost	−17'911	−16'090	−449	−452
Past service cost including effects of curtailment	−1'118	10'202	0	0
Total service cost	−19'029	−5'888	−449	−452
Net interest
Interest cost on defined benefit obligation	−3'565	−3'981	−27	−33
Interest income on plan assets	2'823	3'245	0	0
Total net interest	−742	−736	−27	−33
Administration expense	−610	−600		0
Net actuarial (losses) / gains recognised	0	0	−20	125
Total defined benefit cost	−20'381	−7'224	−496	−360
of which personnel expenses	−20'381	−7'224	−496	−360
of which financial expense	0	0	0	0
Contributions to defined contribution plans	−231	−212	0	0

Remeasurement of the defined benefit liability
Actuarial (gains) / losses
Arising from changes in demographic assumptions	0	2'897
Arising from changes in economic assumptions	7'230	−11'331
Arising from experience	−8'998	−13'817
Return on plan assets (excl. amounts in interest income)	17'444	6'473
Total defined benefit cost recognised in other comprehensive income	15'676	−15'778

Total benefit cost	−4'936	−23'214	−496	−360