Schedule Percentage increase of earnings factor for specified tax years
Original text. Later amendments are not shown.
| Tax year | Percentage increase |
|---|
| 1978-1979 | 754.4 |
| 1979-1980 | 654.1 |
| 1980-1981 | 530.0 |
| 1981-1982 | 427.6 |
| 1982-1983 | 379.2 |
| 1983-1984 | 345.0 |
| 1984-1985 | 312.0 |
| 1985-1986 | 286.5 |
| 1986-1987 | 254.9 |
| 1987-1988 | 230.4 |
| 1988-1989 | 204.0 |
| 1989-1990 | 174.4 |
| 1990-1991 | 155.7 |
| 1991-1992 | 132.2 |
| 1992-1993 | 118.1 |
| 1993-1994 | 107.7 |
| 1994-1995 | 101.4 |
| 1995-1996 | 93.0 |
| 1996-1997 | 87.7 |
| 1997-1998 | 78.8 |
| 1998-1999 | 70.9 |
| 1999-2000 | 64.0 |
| 2000-2001 | 54.3 |
| 2001-2002 | 48.4 |
| 2002-2003 | 42.2 |
| 2003-2004 | 37.3 |
| 2004-2005 | 32.3 |
| 2005-2006 | 27.1 |
| 2006-2007 | 22.9 |
| 2007-2008 | 18.0 |
| 2008-2009 | 13.3 |
| 2009-2010 | 9.9 |
| 2010-2011 | 8.6 |
| 2011-2012 | 6.1 |
| 2012-2013 | 4.3 |
| 2013-2014 | 2.4 |
| 2014-2015 | 1.5 |