"Figure 4: Adjustments give a similar rise in income regardless of quantile group size","" "Average equivalised household disposable income of the richest 10% of people, with varying quantile group size, financial year ending 2003 to financial year ending 2018, UK","" "","" "Notes","1. 2002/03 represents the financial year ending 2003, and similarly through to 2017/18, which represents the financial year ending 2018. 2. 2008/09 is missing due to there being no SPI dataset available for that year. 3. Incomes are adjusted for inflation using the Consumer Prices Index including owner occupiers’ housing costs (CPIH). 4. Individuals are ranked by their equivalised household disposable incomes, using the modified Organisation for Economic Co-operation and Development scale. " "Unit","£s per year" "","" "FYE","Unadjusted","0·25% quantile group size","0·5% quantile group size","1% quantile group size" "2002/03","74625","84604","84521","84432" "2003/04","79576","85254","84666","85020" "2004/05","79321","90412","89768","89456" "2005/06","81676","96190","95898","95524" "2006/07","86518","100766","100412","100584" "2007/08","83699","107208","107297","106309" "2008/09","82160","","","" "2009/10","82961","103095","103376","102658" "2010/11","87495","92508","91822","91941" "2011/12","77901","89102","89014","88842" "2012/13","81817","89138","88265","87864" "2013/14","77631","93766","93668","93189" "2014/15","80480","94557","93881","93491" "2015/16","80252","97984","98171","97344" "2016/17","82462","92997","93283","93007" "2017/18","87719","95545","95285","94650"