Schedule Percentage increase of earnings factors for specified tax years
Original text. Later amendments are not shown.
| Tax year | Percentage increase |
|---|
| 1978-1979 | 1170.1 |
| 1979-1980 | 1021.0 |
| 1980-1981 | 836.5 |
| 1981-1982 | 684.3 |
| 1982-1983 | 612.4 |
| 1983-1984 | 561.5 |
| 1984-1985 | 512.5 |
| 1985-1986 | 474.5 |
| 1986-1987 | 427.6 |
| 1987-1988 | 391.2 |
| 1988-1989 | 351.9 |
| 1989-1990 | 307.9 |
| 1990-1991 | 280.1 |
| 1991-1992 | 245.2 |
| 1992-1993 | 224.2 |
| 1993-1994 | 208.7 |
| 1994-1995 | 199.5 |
| 1995-1996 | 186.8 |
| 1996-1997 | 179.0 |
| 1997-1998 | 165.7 |
| 1998-1999 | 154.1 |
| 1999-2000 | 143.8 |
| 2000-2001 | 129.4 |
| 2001-2002 | 120.5 |
| 2002-2003 | 111.4 |
| 2003-2004 | 104.1 |
| 2004-2005 | 96.6 |
| 2005-2006 | 88.9 |
| 2006-2007 | 82.7 |
| 2007-2008 | 75.5 |
| 2008-2009 | 68.4 |
| 2009-2010 | 63.3 |
| 2010-2011 | 61.4 |
| 2011-2012 | 57.8 |
| 2012-2013 | 55.0 |
| 2013-2014 | 52.2 |
| 2014-2015 | 50.9 |
| 2015-2016 | 48.7 |
| 2016-2017 | 45.7 |
| 2017-2018 | 42.0 |
| 2018-2019 | 37.9 |
| 2019-2020 | 34.2 |
| 2020-2021 | 29.0 |
| 2021-2022 | 25.7 |
| 2022-2023 | 20.3 |
| 2023-2024 | 12.4 |
| 2024-2025 | 4.5 |