We examined wine consumption in Germany, by German länder a.k.a. state.
GFK published a report on wine consumption by German state in 2016. Germany:
North Rhine-Westphalia: 20%
Bavaria: 18%
Northwest Germany: 15%
Central Germany: 15%
Baden-Württemberg: 13%
Northeast Germany: 7%
Southeast Germany: 7%
Berlin: 5%