Jahr;Jan;Feb;Mrz;Apr;Mai;Jun;Jul;Aug;Sep;Okt;Nov;Dez
1998;;;;;;;;;;;;32.0
1999;31.5;;41.0;44.6;44.0;43.7;45.0;44.0;42.5;41.5;37.0;32.0
2000;31.3;27.0;40.0;43.5;44.0;44.5;46.5;46.5;44.0;;33.5;32.0
2001;28.5;31.0;40.0;44.4;46.5;43.3;44.5;44.0;46.0;39.5;34.0;28.5
2002;24.0;36.0;36.2;43.7;44.0;45.0;47.0;44.7;45.5;44.2;37.0;34.5
2003;31.3;33.1;37.2;45.8;47.0;44.5;44.5;44.5;44.0;42.5;39.5;32.5
2004;30.0;35.0;41.5;44.0;47.5;45.2;45.0;43.5;43.0;42.0;37.0;30.0
2005;31.0;38.0;39.0;43.0;44.5;45.0;45.7;44.5;44.5;41.2;34.5;34.5
2006;31.7;40.0;38.7;43.2;45.0;48.5;43.0;44.5;44.6;41.7;33.0;27.0
2007;29.5;35.5;39.5;45.0;47.0;45.5;45.5;45.5;41.0;40.0;37.5;31.5
2008;29.0;29.5;41.0;44.5;45.0;45.5;44.5;44.0;42.5;42.5;37.2;33.0
2009;33.0;33.5;39.0;46.0;46.5;44.5;45.0;43.0;;42.0;36.5;30.0
2010;36.0;45.5;41.5;42.5;45.5;48.0;45.2;45.5;45.0;45.0;39.0;31.5
2011;29.5;34.8;37.0;44.0;45.0;45.0;46.3;44.8;40.0;;;
2012;29.5;38.5;41.0;43.5;46.0;46.0;45.5;44.8;40.2;43.0;39.5;31.0
2013;37.0;33.1;40.0;42.0;45.5;48.0;42.5;44.5;43.5;40.0;36.0;36.0
2014;32.5;33.3;43.0;46.0;47.0;46.0;46.5;44.7;43.5;41.5;35.0;
2015;31.6;34.2;40.8;;45.0;45.7;44.4;46.6;43.7;42.0;34.3;28.2
2016;27.1;35.0;43.6;42.4;47.1;47.2;45.1;43.5;42.6;41.1;37.1;30.6
2017;31.5;31.2;34.9;43.4;45.8;46.0;45.6;44.5;46.0;41.5;33.9;34.3