Schedule Percentage increase of earnings factors for specified tax years
Original text. Later amendments are not shown.
| Tax year | Percentage increase |
|---|
| 1978-1979 | 884.6 |
| 1979-1980 | 769.0 |
| 1980-1981 | 626.0 |
| 1981-1982 | 508.0 |
| 1982-1983 | 452.3 |
| 1983-1984 | 412.8 |
| 1984-1985 | 374.8 |
| 1985-1986 | 345.4 |
| 1986-1987 | 309.0 |
| 1987-1988 | 280.8 |
| 1988-1989 | 250.3 |
| 1989-1990 | 216.2 |
| 1990-1991 | 194.7 |
| 1991-1992 | 167.6 |
| 1992-1993 | 151.3 |
| 1993-1994 | 139.3 |
| 1994-1995 | 132.1 |
| 1995-1996 | 122.4 |
| 1996-1997 | 116.3 |
| 1997-1998 | 106.0 |
| 1998-1999 | 96.9 |
| 1999-2000 | 89.0 |
| 2000-2001 | 77.8 |
| 2001-2002 | 71.0 |
| 2002-2003 | 63.9 |
| 2003-2004 | 58.2 |
| 2004-2005 | 52.4 |
| 2005-2006 | 46.4 |
| 2006-2007 | 41.6 |
| 2007-2008 | 36.0 |
| 2008-2009 | 30.6 |
| 2009-2010 | 26.6 |
| 2010-2011 | 25.1 |
| 2011-2012 | 22.3 |
| 2012-2013 | 20.1 |
| 2013-2014 | 18.0 |
| 2014-2015 | 17.0 |
| 2015-2016 | 15.2 |
| 2016-2017 | 13.0 |
| 2017-2018 | 10.1 |
| 2018-2019 | 6.9 |
| 2019-2020 | 4.0 |