Facts and Figures Population* 310 270 Retail purchasing power* 5 835 EUR/Einwohner/Jahr Labour market General Unemployment rate* 4,70 % Labour - total* 135 490 person employed Labour by job specification Labour - expert* 11 % Labour - specialist* 14 % Labour - skilled worker* 56 % Labour - helper* 19 % Gross salary by job specification Gross salary - expert* 6 175 €/month Gross salary - specialist* 4 862 €/month Gross salary - skilled worker* 3 628 €/month Gross salary - helper* 2 858 €/month Area information Types of use District area* 1 152,42 km² Industrial and commercial area* 1377 ha Residential building area* 8707 ha Agricultural area* 22 ha Contact My|BusinessLocation Kundenservice Website