Once Hamburg Celle & back, tank empty! How are your experiences?

Last night I steamed from Hamburg to Celle, driving distance per Toru 105 KM. When I was back home, tank empty!? Good My cut according to BC was 216 KMH and 19++ L /100. But is that normal? 80% of the track is AB, the rest well developed Landstr. How are your experiences like this?