Jahr;Jan;Feb;Mrz;Apr;Mai;Jun;Jul;Aug;Sep;Okt;Nov;Dez
1999;28.2;31.2;41.7;45.4;45.7;43.6;43.5;39.3;40.4;;;32.4
2000;29.8;34.0;40.5;45.0;;44.5;42.5;41.2;40.8;;35.0;
2001;30.0;32.5;;44.1;;;41.0;38.5;41.7;40.9;38.5;32.4
2002;29.5;32.5;41.0;45.8;46.6;46.5;43.3;43.3;40.5;;35.9;31.5
2003;30.7;32.8;38.4;43.4;44.4;45.9;44.0;39.5;39.2;37.7;35.0;33.5
2004;30.5;35.7;43.2;44.1;45.2;44.5;42.9;39.8;41.7;38.5;34.1;32.2
2005;25.4;30.5;38.0;42.5;44.7;45.2;43.0;41.7;43.6;38.8;34.9;29.7
2006;31.0;36.2;37.6;48.4;;44.7;44.8;40.5;41.5;40.8;34.2;29.3
2007;28.8;30.6;;;44.6;45.8;41.6;39.9;41.3;38.6;36.7;28.4
2008;29.4;36.1;39.1;43.3;44.0;42.0;42.2;40.4;40.0;41.4;36.5;33.5
2009;27.6;33.4;37.6;45.4;47.9;44.0;45.4;41.5;42.6;41.8;36.6;30.5
2010;29.4;35.2;;44.6;47.8;46.6;44.0;40.3;38.9;39.2;34.5;27.5
2011;28.2;32.6;39.6;43.8;45.7;48.1;43.0;39.6;36.6;37.2;35.5;32.6
2012;26.5;32.0;41.5;41.2;46.8;44.5;46.5;40.5;39.2;39.0;34.0;30.8
2013;29.6;30.8;37.0;40.5;48.2;47.0;42.8;39.7;41.7;38.7;33.6;31.0
2014;28.7;30.0;36.4;44.5;46.2;47.6;43.8;41.1;38.8;39.7;34.8;31.5
2015;27.5;33.6;40.3;43.5;45.1;46.2;41.4;38.3;41.8;40.0;34.2;31.0
2016;30.1;33.6;39.6;44.4;49.5;47.6;41.8;38.2;41.5;39.4;35.2;33.8
2017;28.2;34.6;42.2;45.6;46.4;45.5;40.6;40.2;41.8;40.6;36.2;29.8