Jahr;Jan;Feb;Mrz;Apr;Mai;Jun;Jul;Aug;Sep;Okt;Nov;Dez
1999;30.5;35.1;34.4;43.8;46.3;48.2;47.0;44.0;36.4;39.0;36.2;28.7
2000;;32.3;36.7;;;44.4;;46.3;42.2;;34.5;31.2
2001;26.2;29.0;34.0;;45.6;;44.2;44.3;43.0;37.5;37.1;31.8
2002;30.1;29.3;;;47.8;;47.5;43.9;42.2;40.5;35.3;32.4
2003;30.1;34.2;40.6;;44.7;;;;;;;29.4
2004;29.5;32.9;39.5;42.4;47.3;46.3;;43.6;40.8;39.7;34.3;31.4
2005;29.2;33.6;40.2;42.1;45.3;46.1;44.4;43.7;42.4;38.5;34.8;32.2
2006;29.1;33.1;33.9;41.7;44.5;45.1;44.0;42.0;40.9;41.2;38.3;30.8
2007;28.7;34.4;35.3;40.9;44.6;43.4;42.6;41.3;41.2;36.8;34.1;30.1
2008;29.5;31.9;36.3;41.0;45.3;44.8;43.2;40.3;42.9;40.0;33.5;
2009;;;37.5;39.7;48.7;46.2;;47.3;42.4;41.4;35.1;31.5
2010;29.5;33.7;38.0;42.4;;45.3;43.9;41.0;40.6;40.6;34.0;32.4
2011;27.1;31.8;33.7;;46.6;48.6;;41.8;41.8;39.9;32.3;27.8
2012;;31.1;36.8;38.4;45.9;45.3;46.4;41.4;41.1;39.6;33.6;33.0
2013;29.7;29.9;35.2;40.1;43.8;41.6;39.7;39.3;39.4;39.6;33.7;32.1
2014;28.4;28.6;32.9;43.1;47.2;45.1;42.7;37.8;43.7;40.6;36.4;27.3
2015;27.7;39.2;33.7;42.0;46.4;45.7;;45.8;40.5;41.8;39.7;29.6
2016;31.1;;;;;46.9;44.7;43.4;41.5;39.5;32.7;31.7