Jahr;Jan;Feb;Mrz;Apr;Mai;Jun;Jul;Aug;Sep;Okt;Nov;Dez
1998;;;;;;;;;;;;35.5
1999;33.0;;40.0;45.0;;46.0;44.7;45.0;43.8;42.2;37.0;33.0
2000;35.5;31.0;42.0;45.2;46.0;45.8;;48.4;45.3;;37.0;31.0
2001;31.6;35.7;42.2;46.3;47.2;47.0;45.7;46.2;47.8;43.3;36.3;32.8
2002;28.0;37.5;40.0;;46.5;47.5;46.6;45.5;46.3;45.0;41.5;37.6
2003;35.7;38.7;37.7;47.2;48.0;46.2;45.2;46.0;45.8;44.0;39.7;35.2
2004;35.0;38.0;41.7;45.5;48.7;47.3;46.2;45.8;45.2;43.8;38.5;32.4
2005;34.8;41.7;42.5;44.8;46.3;48.0;47.8;46.0;46.3;43.5;37.7;36.2
2006;37.4;40.0;39.5;40.4;45.2;48.5;45.0;46.8;47.0;44.7;36.0;29.5
2007;32.7;37.0;43.2;46.7;46.3;46.8;47.0;47.2;44.0;42.0;39.8;35.2
2008;33.2;34.0;42.6;45.5;47.0;;45.3;47.1;45.6;44.7;37.8;36.8
2009;34.7;36.5;43.0;47.0;46.8;45.7;46.8;46.0;45.7;44.5;39.2;32.0
2010;39.0;39.0;42.5;43.7;47.0;49.6;46.0;47.5;45.5;45.0;39.7;33.7
2011;32.1;37.6;38.8;44.6;45.8;46.5;48.5;46.0;42.5;;;
2012;34.2;39.5;43.0;45.6;46.5;48.2;47.2;46.2;42.7;44.4;40.2;33.8
2013;38.3;38.0;42.1;42.7;48.5;49.0;43.5;44.2;45.3;42.5;37.7;37.3
2014;35.3;35.5;43.5;45.8;48.3;48.6;48.5;46.2;42.5;43.7;38.3;
2015;35.0;40.0;44.3;;46.7;47.6;46.5;49.4;46.2;44.7;35.7;28.7
2016;30.2;38.0;46.4;44.4;47.9;48.3;46.1;46.0;44.6;44.5;37.7;34.3
2017;36.0;35.5;39.2;44.5;46.5;47.0;46.6;46.0;;43.2;36.7;35.2
2018;31.7;40.0;43.2;44.2;47.3;48.0;45.5;44.2;46.3;44.0;35.5;29.3