) The following table provides information about the annual cost of gas for households in UK
in 2009, 2010, 2011 and 2012. Find the fixed-based and chain-based
relatives and complete the table. (8 marks)
Year 2009 2010 2011 2012
Annual Cost 400 1000 1020 2040
Fixed Based Relative (Base Year is 2009)
Chain Based Relativ
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