Facts and Figures Population* 310 353 Retail purchasing power* 6 423 EUR/Einwohner/Jahr Labour market General Unemployment rate* 3,80 % Labour - total* 92 540 person employed Labour by job specification Labour - expert* 12 % Labour - specialist* 13 % Labour - skilled worker* 55 % Labour - helper* 19 % Gross salary by job specification Gross salary - expert* 6 232 €/month Gross salary - specialist* 4 866 €/month Gross salary - skilled worker* 3 672 €/month Gross salary - helper* 2 772 €/month Area information Types of use District area* 1 100,66 km² Industrial and commercial area* 1069 ha Residential building area* 4889 ha Agricultural area* 125 ha Contact My|BusinessLocation Kundenservice Website