In 1921, the ban was partially lifted after Spain refused to buy Iceland's main export, fish, unless Iceland bought Spanish wines. The ban was then modified after a national referendum in 1935 came out in favour of legalising spirits. Strong beer (with an alcohol content of more than 2.25% [3]), however, was not included in the 1935 vote in order to please the temperance lobby—which argued that beer would lead to more depravity, because it was cheaper than spirits.[4]