Benefit expenses

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

	Pensions plans		Other long-term benefits
in CHF thousands	2019	2018	2019	2018
Defined benefit costs
Service cost
Current service cost	–16'567	–17'128	–623	–412
Past service cost including effects of curtailment	0	–63	0	–277
Total service cost	–16'567	–17'191	–623	–689
Net interest
Interest cost on defined benefit obligation	–4'806	–3'759	–42	–22
Interest income on plan assets	3'903	3'073	0	0
Total net interest	–903	–686	–42	–22
Administration expense	–617	–616
Net actuarial (losses) / gains recognised	0	0	–17	–313
Total defined benefit cost	–18'087	–18'493	–682	–1'024
of which personnel expenses	–18'087	–18'493	–682	–1'024
of which financial expense	0	0	0	0
Contributions to defined contribution plans	–830	–778		0

Remeasurement of the defined benefit liability
Actuarial (gains) / losses
Arising from changes in demographic assumptions	16'576	6
Arising from changes in economic assumptions	–36'997	16'086
Arising from experience	–11'953	2'573
Return on plan assets (excl. amounts in interest income)	33'463	–16'921
Total defined benefit cost recognised in other comprehensive income	1'089	1'744

Total benefit cost	–17'828	–17'527	–682	–1'024