Facts and Figures Population* 278 007 Retail purchasing power* 6 402 EUR/Einwohner/Jahr Labour market General Unemployment rate* 4,20 % Labour - total* 99 410 person employed Labour by job specification Labour - expert* 12 % Labour - specialist* 14 % Labour - skilled worker* 56 % Labour - helper* 18 % Gross salary by job specification Gross salary - expert* 6 119 €/month Gross salary - specialist* 4 980 €/month Gross salary - skilled worker* 3 643 €/month Gross salary - helper* 2 888 €/month Area information Types of use District area* 1 344,47 km² Industrial and commercial area* 1282 ha Residential building area* 6176 ha Agricultural area* 38 ha Contact My|BusinessLocation Kundenservice Website