Schedule Percentage increase of earnings factors for specified tax years
Original text. Later amendments are not shown.
| Tax year | Percentage increase |
|---|
| 1978-1979 | 1231.1 |
| 1979-1980 | 1074.8 |
| 1980-1981 | 881.5 |
| 1981-1982 | 722.0 |
| 1982-1983 | 646.6 |
| 1983-1984 | 593.2 |
| 1984-1985 | 541.9 |
| 1985-1986 | 502.1 |
| 1986-1987 | 452.9 |
| 1987-1988 | 414.8 |
| 1988-1989 | 373.6 |
| 1989-1990 | 327.4 |
| 1990-1991 | 298.4 |
| 1991-1992 | 261.8 |
| 1992-1993 | 239.7 |
| 1993-1994 | 223.6 |
| 1994-1995 | 213.8 |
| 1995-1996 | 200.6 |
| 1996-1997 | 192.4 |
| 1997-1998 | 178.5 |
| 1998-1999 | 166.2 |
| 1999-2000 | 155.5 |
| 2000-2001 | 140.4 |
| 2001-2002 | 131.1 |
| 2002-2003 | 121.6 |
| 2003-2004 | 113.9 |
| 2004-2005 | 106.1 |
| 2005-2006 | 97.9 |
| 2006-2007 | 91.4 |
| 2007-2008 | 83.9 |
| 2008-2009 | 76.5 |
| 2009-2010 | 71.2 |
| 2010-2011 | 69.2 |
| 2011-2012 | 65.3 |
| 2012-2013 | 62.4 |
| 2013-2014 | 59.6 |
| 2014-2015 | 58.1 |
| 2015-2016 | 55.8 |
| 2016-2017 | 52.7 |
| 2017-2018 | 48.9 |
| 2018-2019 | 44.5 |
| 2019-2020 | 40.6 |
| 2020-2021 | 35.2 |
| 2021-2022 | 31.8 |
| 2022-2023 | 26.1 |
| 2023-2024 | 17.8 |
| 2024-2025 | 9.5 |
| 2025-2026 | 4.8 |