The Second Five-Year Plan committed the GDR to accelerated efforts toward agricultural collectivization and nationalization and completion of the nationalization of the industrial sector. By 1958 the agricultural sector still consisted primarily of the 750,000 privately owned farms that comprised 70% of all arable land; only 6,000 LPGs had been formed. In 1958–59 the SED placed quotas on private farmers and sent teams to villages in an effort to encourage voluntary collectivization. In November and December 1959 some law-breaking farmers were arrested by the Stasi.