"Figure 3: Real median household income and income inequality (1977 to financial year ending 2016)","" "","" "","" "Notes","1. A household's disposable income is made up of all its earnings and investment income (including private pensions), plus cash benefits received from the state, minus direct taxes such as Income Tax and Council Tax. Equivalisation adjusts the income of households to reflect the different costs associated with different sizes and compositions of households. 2. The S80:S20 is the ratio of the total equivalised disposable income of the richest fifth of the population to that of the poorest fifth of the population. 3. Years are calendar years until 1993 and financial years from 1994/95. 4. Income is deflated using the Household final consumption expenditure implied deflator." "Unit","" "","" "Year"," Real median equivalised disposable income (£)","S80:S20 Ratio" "1977","12082","3.9" "1978","13194","3.8" "1979","13295","4.0" "1980","13679","4.2" "1981","13515","4.2" "1982","13261","4.1" "1983","13524","4.3" "1984","13583","4.0" "1985","14332","4.5" "1986","14811","4.7" "1987","15569","5.1" "1988","16482","5.8" "1989","16966","5.7" "1990","17536","6.4" "1991","17955","6.1" "1992","17625","5.7" "1993","17246","5.7" "1994/1995","17556","5.4" "1995/1996","17845","5.3" "1996/1997","18987","5.6" "1997/1998","20052","5.7" "1998/1999","20745","6.0" "1999/2000","21801","6.2" "2000/2001","22536","5.9" "2001/2002","23665","6.2" "2002/2003","24522","5.5" "2003/2004","24955","5.6" "2004/2005","25522","5.3" "2005/2006","25374","5.5" "2006/2007","25770","5.8" "2007/2008","26031","5.8" "2008/2009","25507","5.7" "2009/2010","25746","5.4" "2010/2011","25220","5.4" "2011/2012","24723","5.1" "2012/2013","24400","5.3" "2013/2014","25040","5.3" "2014/2015","25746","5.3" "2015/2016","26432","5.1"