# The Social Security Revaluation of Earnings Factors Order 1999, Schedule


Tax Year
Percentage
1978/79
419.5
1979/80
358.2
1980/81
283.0
1981/82
221.1
1982/83
191.4
1983/84
170.1
1984/85
150.1
1985/86
134.7
1986/87
115.6
1987/88
100.8
1988/89
84.6
1989/90
67.2
1990/91
55.8
1991/92
41.5
1992/93
33.0
1993/94
26.6
1994/95
22.8
1995/96
17.6
1996/97
14.1
1997/98
9.4
1998/99
4.2

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Source: https://www.legislation.gov.uk/uksi/1999/1235/schedule (the official version)
Page: https://openlegislation.uk/social-security-revaluation-of-earnings-factors-order-1999/schedule
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.