Facts and Figures Population* 171 554 Retail purchasing power* 5 669 EUR/Einwohner/Jahr Labour market General Unemployment rate* 4,20 % Labour - total* 68 390 person employed Labour by job specification Labour - expert* 10 % Labour - specialist* 12 % Labour - skilled worker* 56 % Labour - helper* 23 % Gross salary by job specification Gross salary - expert* 5 796 €/month Gross salary - specialist* 4 460 €/month Gross salary - skilled worker* 3 226 €/month Gross salary - helper* 2 474 €/month Area information Types of use District area* 2 104,20 km² Industrial and commercial area* 1911 ha Residential building area* 3874 ha Agricultural area* 47 ha Contact My|BusinessLocation Kundenservice Website