23 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		31.12.2016	31.12.2017	2016	2017
EUR	1	1.07	1.17	1.09	1.11
GBP	1	1.26	1.32	1.33	1.27
SEK	100	11.19	11.90	11.52	11.54
USD	1	1.02	0.97	0.99	0.98
SGD	1	0.70	0.73	0.71	0.71
CNY	1	0.15	0.15	0.15	0.15
JPY	100	0.88	0.86	0.91	0.88
AUD	1	0.73	0.76	0.73	0.75