sentences:  In 2004, the Scottish Socialist Party launched a "Scrap the Council Tax" campaign, boosted by a poll suggesting 77% of Scots supported the abolition of the tax.A bill proposing a progressive system of taxation based on a household's income was presented in 2005, but was defeated with 12 MSPs in favour, 94 against, and 6 abstaining.Although the SNP and the Liberal Democrats supported the principle of income-based taxation, they disagreed with the SSP's specific proposals, which would have exempted anyone with an annual income of less than £10,000 and reduced liabilities for anyone with an annual income of less than £30,000, while targeting revenue generation to household incomes in excess of £90,000.