Facts and Figures Population* 256 016 Retail purchasing power* 7 162 EUR/Einwohner/Jahr Labour market General Unemployment rate* 3,90 % Labour - total* 71 870 person employed Labour by job specification Labour - expert* 9 % Labour - specialist* 13 % Labour - skilled worker* 57 % Labour - helper* 21 % Gross salary by job specification Gross salary - expert* 5 773 €/month Gross salary - specialist* 4 422 €/month Gross salary - skilled worker* 3 489 €/month Gross salary - helper* 2 768 €/month Area information Types of use District area* 1 248,45 km² Industrial and commercial area* 1103 ha Residential building area* 8729 ha Agricultural area* 42 ha Contact My|BusinessLocation Kundenservice Website