Cika wannan jumla: A shekara ta 1933, an yi wa gine-ginen umarnin kiyayewa, kuma sun tsira daga
hare-haren bama-bamai na yakin duniya na biyu ba tare da babbar lalacewa ba. Daga 1972 zuwa 1974, an yi aikin gyaran dala miliyan 1.6 na Deutschmark.