Jahr;Jan;Feb;Mrz;Apr;Mai;Jun;Jul;Aug;Sep;Okt;Nov;Dez
1996;;32.3;35.6;38.6;;43.7;42.9;43.9;44.0;40.1;36.6;30.2
1997;29.2;27.5;32.3;39.7;41.4;44.3;42.7;42.8;44.5;39.9;34.1;28.9
1998;27.9;29.1;32.5;40.8;43.2;;43.7;43.1;42.0;41.2;35.5;31.7
1999;30.3;35.8;37.7;;43.5;43.9;42.1;42.1;43.4;40.0;35.2;31.4
2000;29.1;30.5;34.3;36.4;42.2;43.4;;42.0;42.8;;33.7;29.0
2001;28.1;;36.1;40.4;;;;43.1;44.2;41.8;33.5;30.8
2002;26.2;32.3;35.5;38.5;41.6;43.0;44.7;42.9;43.6;40.0;35.1;28.8
2003;30.0;30.9;33.3;38.9;43.3;43.7;42.1;42.9;43.3;40.5;34.6;30.2
2004;28.8;30.6;35.9;39.4;44.6;43.4;43.7;43.4;43.5;40.1;34.8;29.4
2005;27.2;34.5;35.7;40.4;41.0;44.3;42.9;43.6;43.3;39.1;34.0;32.4
2006;31.1;33.3;34.8;38.1;42.3;44.7;42.8;43.6;42.6;40.1;32.8;27.4
2007;26.8;31.2;35.8;39.9;43.0;43.1;40.8;42.5;42.0;40.4;35.3;31.1
2008;27.2;30.3;38.0;40.6;42.3;44.7;43.1;43.2;43.1;38.6;35.4;31.8
2009;30.5;32.7;34.4;42.0;41.9;44.6;43.7;43.2;43.8;39.6;34.1;30.0
2010;28.6;33.5;36.2;40.5;43.3;;;44.1;43.3;41.4;36.4;31.3
2011;27.9;32.9;28.7;38.3;42.3;44.1;43.2;43.6;41.3;;;
2012;28.4;32.8;34.2;39.9;43.4;43.7;44.3;43.2;42.5;40.4;35.0;30.1
2013;30.0;33.8;37.2;38.5;43.0;43.6;42.5;41.2;43.3;39.9;34.7;29.1
2014;27.8;31.3;36.2;41.0;42.4;44.2;43.1;42.1;42.8;40.4;;
2015;27.6;34.6;37.4;;43.0;44.3;43.7;44.9;44.7;40.5;34.5;27.3
2016;27.1;31.9;38.0;40.1;43.6;45.9;43.6;43.4;43.7;41.5;38.6;30.8
2017;31.8;28.9;34.4;40.1;42.5;45.4;44.7;43.8;44.5;40.5;34.6;32.8
2018;27.5;35.0;30.8;39.2;43.5;44.0;42.8;42.8;44.0;40.3;32.2;28.6