What was the population in 2017 of the city Hans List was born in?
Hans List: Hans List (April 30, 1896 in Graz, capital of Austria's federal province Styria – September 10, 1996 in Graz) was a technical scientist and inventor and entrepreneur. Graz:  On 1 January 2017, it had a population of 320,587 (of which 286,686 had principal residence status).
320,587