Schedule Percentage increase of earnings factors for specified tax years
Original text. Later amendments are not shown.
| Tax year | Percentage increase |
|---|
| 1978-1979 | 910.2 |
| 1979-1980 | 791.6 |
| 1980-1981 | 644.9 |
| 1981-1982 | 523.8 |
| 1982-1983 | 466.6 |
| 1983-1984 | 426.1 |
| 1984-1985 | 387.1 |
| 1985-1986 | 357.0 |
| 1986-1987 | 319.6 |
| 1987-1988 | 290.7 |
| 1988-1989 | 259.4 |
| 1989-1990 | 224.4 |
| 1990-1991 | 202.3 |
| 1991-1992 | 174.6 |
| 1992-1993 | 157.8 |
| 1993-1994 | 145.6 |
| 1994-1995 | 138.2 |
| 1995-1996 | 128.1 |
| 1996-1997 | 121.9 |
| 1997-1998 | 111.4 |
| 1998-1999 | 102.1 |
| 1999-2000 | 93.9 |
| 2000-2001 | 82.4 |
| 2001-2002 | 75.4 |
| 2002-2003 | 68.2 |
| 2003-2004 | 62.3 |
| 2004-2005 | 56.4 |
| 2005-2006 | 50.2 |
| 2006-2007 | 45.3 |
| 2007-2008 | 39.6 |
| 2008-2009 | 33.9 |
| 2009-2010 | 29.9 |
| 2010-2011 | 28.4 |
| 2011-2012 | 25.5 |
| 2012-2013 | 23.3 |
| 2013-2014 | 21.1 |
| 2014-2015 | 20.0 |
| 2015-2016 | 18.2 |
| 2016-2017 | 15.9 |
| 2017-2018 | 13.0 |
| 2018-2019 | 9.7 |
| 2019-2020 | 6.7 |
| 2020-2021 | 2.6 |