"Figure 5: Inequality of original income has fallen by 3.0 percentage points between financial year ending 2011 and financial year ending 2018","" "Gini coefficients for different income measures, UK, 1977 to financial year ending 2018","" "","" "Notes","1. Original income includes all sources of income from employment, private pensions, investments and other non-government sources. The receipt of cash benefits is then added to original income to estimate gross income, and then direct taxes are subtracted to estimate disposable income. Indirect taxes (for example, VAT, alcohol duties and so on) are further subtracted to form post-tax income, and finally benefits-in-kind (for example, state education, National Health Service) are added to estimate final income. 2. Incomes are equivalised using the modified Organisation for Economic Co-operation and Development (OECD) equivalisation scale. 3. 2017 to 2018 represents the financial year ending 2018 (April to March), and this applies for all other years expressed in this format. " "Unit","%" "","" "","Equivalised original income ","Equivalised gross income","Equivalised disposable income","Equivalised post-tax income","Equivalised final income " "1977","36.8","27.7","25.5","28","22" "1978","37.1","27.6","25","26.8","21.1" "1979","37.2","27.6","25.4","27.5","21.5" "1980","38.3","28.8","26.7","29.3","22.7" "1981","40.3","29.8","27.4","30.1","23" "1982","41.7","29.9","27.6","30.7","24.1" "1983","43.3","31","28.3","31.1","24.9" "1984","43","30","27","29.7","24.4" "1985","44.8","32.5","29.6","32.6","26.4" "1986","45.2","32.8","30.1","33.8","26.9" "1987","46.2","34.2","31.5","35.2","28.2" "1988","45.8","35.1","33.3","37.2","30.1" "1989","44.9","34.4","32.7","36.4","29.2" "1990","46.7","36.6","34.9","38.9","31.6" "1991","46.6","36","33.9","37.8","30.7" "1992","48","35.9","33.4","37.3","29.6" "1993","49.5","36.5","33.7","37.7","29.6" "1994/95","48.5","35.7","32.5","36.3","28.5" "1995/96","48.3","35.6","32.3","36.4","28.3" "1996/97","48.5","36.2","33.2","37.2","29.3" "1997/98","48.2","36.4","33.4","37.3","29.6" "1998/99","49","37.4","34.4","38.6","30.5" "1999/00","49","37.8","35.1","39.5","31.3" "2000/01","47.9","36.9","34.3","38.7","30.4" "2001/02","48.7","37.9","34.9","39.3","30.8" "2002/03","47.3","36.2","32.8","36.7","28.4" "2003/04","47.7","36.2","32.8","36.9","28.6" "2004/05","46.9","35.4","32","35.8","27.5" "2005/06","47.9","36.2","32.9","36.4","28" "2006/07","48.5","37.2","34.1","38.2","29.2" "2007/08","47.8","36.4","33.3","37.2","28.6" "2008/09","48.1","36.1","33.1","36.5","28.8" "2009/10","48.8","36.1","32.7","36","27.6" "2010/11","49.2","36.5","33.3","37.3","28.9" "2011/12","48.3","35.2","31.4","35.2","27.1" "2012/13","49.3","36.5","33","36.8","28.5" "2013/14","47.3","35.3","31.8","35.6","27.6" "2014/15","47.3","35.3","32","35.5","27.9" "2015/16","46.6","34.7","31.2","34.7","27.2" "2016/17","45.8","34.6","31.4","35.3","27.2" "2017/18","46.3","35.6","32.5","36","27.7"