Facts and Figures Population* 173 316 Retail purchasing power* 5 797 EUR/Einwohner/Jahr Labour market General Unemployment rate* 3,50 % Labour - total* 66 190 person employed Labour by job specification Labour - expert* 11 % Labour - specialist* 13 % Labour - skilled worker* 59 % Labour - helper* 17 % Gross salary by job specification Gross salary - expert* 5 444 €/month Gross salary - specialist* 4 262 €/month Gross salary - skilled worker* 3 201 €/month Gross salary - helper* 2 696 €/month Area information Types of use District area* 2 274,50 km² Industrial and commercial area* 1966 ha Residential building area* 6189 ha Agricultural area* 236 ha Contact My|BusinessLocation Kundenservice Website