Facts and Figures Population* 172 291 Retail purchasing power* 5 970 EUR/Einwohner/Jahr Labour market General Unemployment rate* 4,10 % Labour - total* 57 520 person employed Labour by job specification Labour - expert* 10 % Labour - specialist* 12 % Labour - skilled worker* 60 % Labour - helper* 18 % Gross salary by job specification Gross salary - expert* 6 076 €/month Gross salary - specialist* 4 635 €/month Gross salary - skilled worker* 3 607 €/month Gross salary - helper* 2 790 €/month Area information Types of use District area* 738,44 km² Industrial and commercial area* 790 ha Residential building area* 3765 ha Agricultural area* 137 ha Contact My|BusinessLocation Kundenservice Website