Facts and Figures Population* 228 471 Retail purchasing power* 6 331 EUR/Einwohner/Jahr Labour market General Unemployment rate* 2,60 % Labour - total* 96 730 person employed Labour by job specification Labour - expert* 20 % Labour - specialist* 16 % Labour - skilled worker* 51 % Labour - helper* 13 % Gross salary by job specification Gross salary - expert* 6 446 €/month Gross salary - specialist* 5 157 €/month Gross salary - skilled worker* 3 965 €/month Gross salary - helper* 3 003 €/month Area information Types of use District area* 519,12 km² Industrial and commercial area* 853 ha Residential building area* 3182 ha Agricultural area* 119 ha Contact My|BusinessLocation Kundenservice Website