Schedule Percentage increase of earnings factor for specified tax years
Original text. Later amendments are not shown.
| Tax year | Percentage increase |
|---|
| 1978-1979 | 741.7 |
| 1979-1980 | 642.9 |
| 1980-1981 | 520.7 |
| 1981-1982 | 419.8 |
| 1982-1983 | 372.1 |
| 1983-1984 | 338.4 |
| 1984-1985 | 305.9 |
| 1985-1986 | 280.8 |
| 1986-1987 | 249.7 |
| 1987-1988 | 225.6 |
| 1988-1989 | 199.5 |
| 1989-1990 | 170.3 |
| 1990-1991 | 151.9 |
| 1991-1992 | 128.8 |
| 1992-1993 | 114.8 |
| 1993-1994 | 104.6 |
| 1994-1995 | 98.5 |
| 1995-1996 | 90.1 |
| 1996-1997 | 84.9 |
| 1997-1998 | 76.1 |
| 1998-1999 | 68.4 |
| 1999-2000 | 61.6 |
| 2000-2001 | 52.0 |
| 2001-2002 | 46.2 |
| 2002-2003 | 40.1 |
| 2003-2004 | 35.3 |
| 2004-2005 | 30.3 |
| 2005-2006 | 25.2 |
| 2006-2007 | 21.1 |
| 2007-2008 | 16.3 |
| 2008-2009 | 11.6 |
| 2009-2010 | 8.3 |
| 2010-2011 | 7.0 |
| 2011-2012 | 4.6 |
| 2012-2013 | 2.7 |
| 2013-2014 | 0.9 |