Jahr;Jan;Feb;Mrz;Apr;Mai;Jun;Jul;Aug;Sep;Okt;Nov;Dez
1995;31.7;;38.2;37.5;41.6;44.5;42.2;42.5;42.3;40.9;35.3;30.4
1996;30.2;32.9;34.2;37.8;42.2;42.5;42.5;43.0;43.6;40.2;32.2;32.3
1997;29.6;29.2;31.8;37.6;40.9;43.2;43.4;43.2;45.2;37.5;34.4;31.5
1998;;31.9;;39.3;42.2;43.2;43.2;42.9;43.5;41.6;37.4;34.4
1999;31.2;35.3;34.8;39.1;44.5;43.9;42.7;43.3;43.1;41.2;;33.4
2000;;;35.6;43.0;;44.2;43.5;41.9;43.0;39.5;34.4;31.9
2001;31.0;32.0;36.3;39.9;;44.3;43.2;42.1;41.3;45.2;39.2;33.3
2002;29.2;34.1;35.8;38.9;42.4;48.2;45.4;;43.2;;36.4;31.5
2003;31.7;31.1;34.2;40.2;44.8;42.0;42.7;42.9;;40.2;34.2;31.9
2004;;32.2;35.7;;42.9;42.9;43.1;41.8;42.3;;35.2;30.9
2005;29.0;34.7;34.9;38.6;40.3;38.6;42.1;42.7;43.1;39.9;35.4;33.4
2006;31.3;33.3;35.0;37.1;41.3;44.6;42.1;42.8;43.0;39.4;34.4;30.2
2007;29.5;32.3;35.1;39.1;42.8;42.8;43.0;43.0;43.1;41.0;37.3;33.7
2008;29.5;33.3;38.0;40.5;43.0;44.2;44.1;43.8;43.1;41.0;36.1;34.5
2009;33.3;34.5;35.8;40.2;42.6;45.4;44.6;43.7;43.5;41.3;36.0;33.1
2010;34.1;34.1;37.6;40.3;43.1;44.8;43.2;43.8;43.3;42.6;38.6;34.4
2011;30.9;33.8;;38.1;42.6;43.8;44.5;43.1;42.6;41.2;35.5;34.2
2012;31.1;34.4;35.0;39.6;43.4;45.4;43.8;43.2;43.5;40.3;36.3;33.1
2013;32.1;35.1;37.2;38.6;42.8;44.8;43.5;41.7;43.5;40.7;36.5;32.9
2014;32.5;33.8;35.9;39.6;41.5;44.5;44.0;43.5;42.7;40.1;35.8;34.3