 (In contrast the Germans estimate a total loss of German property, due to the border changes promoted by the USSR and the population expulsions, of 355.3 billion Deutschmarks).As a result, the Soviets sought to extract the $10bn from its occupation zone in eastern Germany, in addition to the trophy removals; Naimark (1995) estimates that $10bn was transferred in material form by the early 1950s, including in 1945 and 1946 over 17,000 factories, amounting to a third of the productive capital of the eastern occupation zone.In the western zones, dismantling and/or destruction of German industry continued until 1951 in accordance to the (several times modified) "German level of industry" agreement connected with the Potsdam conference whereby Germany was to be treated as a single unit and converted into an "agricultural and light industry economy".