24 Foreign exchange rates

The following foreign exchange rates were used for the preparation of the consolidated financial statements:

		Closing exchange rates		Average exchange rates January to December
CHF		31.12.2017	31.12.2018	2017	2018
EUR	1	1.17	1.13	1.11	1.15
GBP	1	1.32	1.25	1.27	1.31
SEK	100	11.90	11.08	11.54	11.26
USD	1	0.97	0.98	0.98	0.98
SGD	1	0.73	0.72	0.71	0.73
CNY	1	0.15	0.14	0.15	0.15
JPY	100	0.86	0.90	0.88	0.89
AUD	1	0.76	0.69	0.75	0.73