Schedule Percentage increase of earnings factor for specified tax years
Original text. Later amendments are not shown.
| Tax year | Percentage increase |
|---|
| 1978-1979 | 719.5 |
| 1979-1980 | 623.3 |
| 1980-1981 | 504.3 |
| 1981-1982 | 406.1 |
| 1982-1983 | 359.6 |
| 1983-1984 | 326.8 |
| 1984-1985 | 295.2 |
| 1985-1986 | 270.7 |
| 1986-1987 | 240.4 |
| 1987-1988 | 217.0 |
| 1988-1989 | 191.6 |
| 1989-1990 | 163.2 |
| 1990-1991 | 145.3 |
| 1991-1992 | 122.8 |
| 1992-1993 | 109.2 |
| 1993-1994 | 99.2 |
| 1994-1995 | 93.2 |
| 1995-1996 | 85.1 |
| 1996-1997 | 80.0 |
| 1997-1998 | 71.5 |
| 1998-1999 | 63.9 |
| 1999-2000 | 57.3 |
| 2000-2001 | 48.0 |
| 2001-2002 | 42.3 |
| 2002-2003 | 36.4 |
| 2003-2004 | 31.7 |
| 2004-2005 | 26.9 |
| 2005-2006 | 21.9 |
| 2006-2007 | 17.9 |
| 2007-2008 | 13.2 |
| 2008-2009 | 8.7 |
| 2009-2010 | 5.4 |
| 2010-2011 | 4.1 |
| 2011-2012 | 1.8 |