A significant part of the federal fiscal surplus of the Jean Chrétien and Paul Martin years came from the EI system. Premiums were reduced much less than falling expenditures – producing, from 1994 onwards, EI surpluses of several billion dollars per year, which were added to general government revenue. The cumulative EI surplus stood at $57 billion at 31 March 2008, nearly four times the amount needed to cover the extra costs paid during a recession. This drew criticism from Opposition parties and from business and labour groups, and has remained a recurring issue of the public debate. The Conservative Party, chose not to recognize those EI surpluses after being elected in 2006. Instead, the Conservative government cancelled the EI surpluses entirely in 2010, and required EI contributors to make up the 2009, 2010 and 2011 annual deficits by increasing EI premiums. On 11 December 2008, the Supreme Court of Canada rejected a court challenge launched against the federal government by two Quebec unions, who argued that EI funds had been misappropriated by the government.