Every year, Stiftung Lesen, Deutsche Bahn and the weekly newspaper Die Zeit examine the reading landscape in Germany and produce an empirical study, based on the original from 2007.
You can click the link to read findings from the 2016 representative study of parents with children aged 5 to 10: https://www.stiftunglesen.de/download.php?type=documentpdf&id=1921
This research is run by Stiftung Lesen (Germany).