After a period of rapid growth and unprecedented prosperity during the late 1980s, by 1990 the Swedish economy overheated, and after a controversial bill freezing salaries and banning strikes failed in the Riksdag, the social democratic government led by Prime Minister Ingvar Carlsson resigned in February 1990. At this time the respected Finance Minister Kjell-Olof Feldt left the government in protest over what he saw as irresponsible economic policies. Carlsson soon formed a new government, but by the time of the general election in September 1991 the economy was in free fall, and with rapidly rising unemployment, the social democrats received the smallest share of votes in sixty years (37.7%), resulting in the loss of office to the opposition, a centre-right coalition led by Carl Bildt.