Facts and Figures Population* 323 130 Retail purchasing power* 6 317 EUR/Einwohner/Jahr Labour market General Unemployment rate* 5,90 % Labour - total* 108 720 person employed Labour by job specification Labour - expert* 11 % Labour - specialist* 13 % Labour - skilled worker* 57 % Labour - helper* 19 % Gross salary by job specification Gross salary - expert* 6 118 €/month Gross salary - specialist* 4 796 €/month Gross salary - skilled worker* 3 796 €/month Gross salary - helper* 2 953 €/month Area information Types of use District area* 409,64 km² Industrial and commercial area* 1249 ha Residential building area* 4615 ha Agricultural area* 8 ha Contact My|BusinessLocation Kundenservice Website