Jahr;Jan;Feb;Mrz;Apr;Mai;Jun;Jul;Aug;Sep;Okt;Nov;Dez
2009;;;;;;;;;;;;31.0
2010;30.7;33.9;38.4;42.9;;;46.5;;42.9;41.9;34.2;31.1
2011;30.5;32.9;37.6;40.1;46.2;47.1;;45.6;45.0;;31.6;30.3
2012;;32.2;;40.8;;46.4;46.4;45.7;44.7;;35.4;33.0
2013;29.3;32.3;36.6;42.1;42.2;46.5;46.3;44.5;42.8;38.9;34.4;32.0
2014;29.6;32.5;38.2;43.7;45.4;46.2;;45.4;44.9;39.9;36.1;31.3
2015;30.1;35.2;38.5;;44.8;;;;;41.6;;
2016;31.3;36.5;38.0;41.8;45.2;44.5;47.6;44.4;43.8;40.0;;
2017;;33.8;39.2;41.7;48.4;48.9;44.7;44.4;42.9;40.2;34.4;31.8
2018;31.4;;40.1;41.1;44.3;47.8;47.3;47.6;41.6;40.1;36.4;32.0