Jahr	CH	BS	BL
1997	188.10	227.40	193.30
1998	197.30	249.10	205.80
1999	203.90	270.00	207.30
2000	211.70	283.20	214.60
2001	223.30	300.30	225.20
2002	245.00	326.20	247.70
2003	268.50	355.60	272.20
2004	280.00	377.50	285.60
2005	290.20	388.90	294.90
2006	306.40	404.00	308.50
2007	313.00	409.00	315.40
2008	314.60	409.00	317.70
2009	322.90	420.30	331.60
2010	351.10	452.40	368.40
2011	373.80	484.20	398.80
2012	382.00	500.40	408.50