Jahr;Jan;Feb;Mrz;Apr;Mai;Jun;Jul;Aug;Sep;Okt;Nov;Dez 1996;;;37.0;40.7;43.3;43.3;43.6;42.4;41.6;41.8;;33.4 1997;30.5;29.4;29.2;40.5;41.5;;42.3;42.4;43.3;40.1;34.5;33.0 1998;29.7;31.5;34.5;40.3;43.4;44.3;41.8;39.6;40.8;40.7;37.5;32.9 1999;32.8;38.1;37.9;40.4;43.8;44.7;40.4;39.6;42.1;40.1;37.3;33.4 2000;31.5;32.9;35.0;41.1;43.5;43.0;;42.5;42.5;;35.5;31.0 2001;29.9;;37.7;42.9;43.7;43.0;41.7;41.0;42.9;40.5;36.4;33.2 2002;28.6;34.1;37.1;40.9;42.9;43.5;43.3;41.7;42.7;40.8;36.7;31.1 2003;31.9;33.3;36.0;41.1;44.0;43.7;40.5;39.9;42.3;40.5;36.3;32.4 2004;30.8;32.3;37.6;40.9;45.1;41.0;43.2;42.0;42.7;40.4;36.5;31.1 2005;29.5;36.5;37.5;41.9;41.8;43.9;41.6;42.0;41.9;40.6;36.3;34.5 2006;33.3;34.9;36.5;39.7;42.8;44.3;43.2;41.5;41.5;40.8;35.1;29.9 2007;29.1;33.5;37.5;41.1;44.4;43.6;39.6;40.5;42.2;41.2;37.0;34.0 2008;30.1;33.0;40.0;41.6;43.3;44.7;42.4;41.9;41.3;39.3;36.1;33.5 2009;32.4;34.7;36.5;43.1;42.5;45.2;42.2;41.8;43.5;39.9;35.8;31.9 2010;33.1;34.9;37.7;41.9;44.3;45.1;40.8;40.6;42.0;41.4;37.4;33.0 2011;29.9;34.9;37.5;39.6;42.3;44.0;41.7;41.6;41.3;;; 2012;29.3;34.3;35.6;40.5;43.8;43.3;42.1;41.4;42.1;40.5;36.4;31.5 2013;31.9;35.4;37.9;39.7;43.4;43.4;42.4;38.3;42.1;40.1;35.7;31.2 2014;31.1;32.4;37.1;41.2;42.1;44.0;41.5;39.4;41.0;38.5;34.5; 2015;30.1;35.1;36.8;;43.6;44.0;43.5;41.0;42.1;40.4;35.5;28.5 2016;28.6;33.8;38.9;40.4;45.0;44.2;41.7;41.4;42.3;40.6;36.6;32.4 2017;33.1;30.4;35.6;41.1;45.0;43.9;42.8;40.9;41.9;40.2;35.4;34.0