# The Social Security Revaluation of Earnings Factors Order 2010, Schedule: Percentage increase of earnings factor for specified tax years


Tax year
Percentage increase
1978 – 1979
686.9
1979 – 1980
594.5
1980 – 1981
480.2
1981 – 1982
385.9
1982 – 1983
341.4
1983 – 1984
309.8
1984 – 1985
279.5
1985 – 1986
256.0
1986 – 1987
226.9
1987 – 1988
204.3
1988 – 1989
180.0
1989 – 1990
152.7
1990 – 1991
135.5
1991 – 1992
113.9
1992 – 1993
100.8
1993 – 1994
91.3
1994 – 1995
85.5
1995 – 1996
77.7
1996 – 1997
72.9
1997 – 1998
64.6
1998 – 1999
57.4
1999 – 2000
51.1
2000 – 2001
42.1
2001 – 2002
36.6
2002 – 2003
31.0
2003 – 2004
26.5
2004 – 2005
21.8
2005 – 2006
17.0
2006 – 2007
13.2
2007 – 2008
8.7
2008 – 2009
4.3
2009 – 2010
1.2

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Source: https://www.legislation.gov.uk/uksi/2010/470/schedule (the official version)
Page: https://openlegislation.uk/social-security-revaluation-of-earnings-factors-order-2010/schedule
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.