§ Dr. McDonaldasked the Chancellor of the Exchequer if he will update the answers to the hon. Member for Birmingham, Perry Barr (Mr. Rooker) of 6 February 1984, Official Report, columns 439–42 and 15 February 1984, Official Report, columns 203–4, concerning income statistics, to show net earnings at the lowest decile, median and highest decile of the earnings distribution for each year since 1978 for different household types, using constant April 1984 prices; and whether he will also give the same information for the following additional household types: (a) a married couple with two children, where one partner works full-time and the other part-time and (b) a married couple with both partners in full-time work.
§ Mr. Moore[pursuant to his reply, 18 February 1985, c. 403]: Information in the following tables is based on
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Earnings after income tax, National Insurance Contributions and Child Benefit At current prices £ At constant (April 1984) prices £ At constant prices (April 1978=100) At current prices £ At constant (April 1984) prices £ At constant prices (April 1978=100) Single man Married man At the lowest decile gross earnings April 1978 39.35 70.71 100.0 42.84 76.98 100.0 April 1979 44.09 71.98 101.8 47.90 78.20 101.6 April 1980 53.47 71.70 101.4 57.92 77.66 100.9 April 1981 57.67 69.02 97.6 62.11 74.34 96.6 April 1982 61.95 67.76 95.8 67.03 73.32 95.1 April 1983 66.91 70.37 99.5 72.73 76.50 99.4 April 1984 74.43 74.43 105.3 81.07 81.07 105.3 At the median of gross earnings April 1978 56.29 101.15 100.0 59.78 107.42 100.0 April 1979 63.94 104.39 103.2 67.75 110.60 103.0 April 1980 78.52 105.29 104.1 82.96 111.24 103.6 April 1981 85.56 102.39 101.2 90.00 107.71 100.2 April 1982 93.00 101.73 100.6 98.8 107.28 99.9 April 1983 100.64 105.85 104.6 106.47 111.97 104.2 April 1984 116.19 116.19 114.9 122.82 122.82 114.3 At the highest decile of gross earnings April 1978 85.50 153.64 100.0 88.99 159.92 100.0 April 1979 96.89 158.17 102.9 100.70 164.39 102.8 April 1980 123.64 165.78 107.9 128.08 171.74 107.4 April 1981 139.36 166.79 108.6 143.81 172.10 107.6 April 1982 151.76 166.00 108.0 156.84 171.55 107.3 April 1983 165.83 174.41 113.5 171.66 180.53 112.9 April 1984 196.55 196.55 127.9 203.18 203.18 127.0 Married man with two children* Married man with four children† At the lowest decile gross earnings April 1978 48.71 87.53 100.0 55.15 99.11 100.0 April 1979 55.90 91.26 104.3 63.90 104.32 105.3 April 1980 65.92 88.38 101.0 73.92 99.11 100.0 April 1981 71.61 85.70 97.9 81.11 97.07 97.9 April 1982 77.53 84.80 96.9 88.03 96.29 97.1 April 1983 84.43 88.80 101.4 96.13 101.11 102.0 April 1984 94.07 94.07 107.5 107.07 107.07 108.0 At the median of gross earnings April 1978 65.65 117.97 100.0 72.15 129.66 100.0 April 1979 75.75 — — 83.75 136.72 105.4 April 1980 90.96 121.97 103.4 98.96 132.70 102.3 April 1981 99.50 119.08 100.9 109.00 130.45 100.6 April 1982 108.58 118.77 100.7 119.08 130.25 100.4 April 1983 118.17 124.28 105.3 129.87 136.58 105.3 April 1984 135.82 135.82 115.1 148.82 148.82 114.8 At the highest decile of gross earnings April 1978 94.86 170.46 100.0 101.36 182.15 100.0 April 1979 108.70 — — 116.70 190.51 104.6 estimates of earnings for those in full time work paid at adult rates (with pay unaffected by absence). The earlier answers were based on earnings of full time males over 21. Estimates are based on information from the "New Earnings Surveys."
Income tax rates and allowances for April 1979 are those specified in the Finance Act 1979, later replaced by those announced in June 1979; for other Aprils, they are the rates and allowances for the financial year immediately following. Taxpayers are assumed to have no reliefs or allowances other than the appropriate personal allowance. National insurance contributions are at the contracted-in rate.
The calculations take no account of means-tested benefits to which those at the lowest decile may be entitled. Changes in the purchasing power of net earnings have been calculated by reference to movements in the general index of retail prices between Aprils.
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At current prices £ At constant (April 1984) prices £ At constant prices (April 1978=100) At current prices £ At constant (April 1984) prices £ At constant prices (April 1978=100) April 1980 136.08 182.46 107.0 144.08 193.19 106.1 April 1981 153.31 183.47 107.6 162.81 194.84 107.0 April 1982 167.34 183.04 107.4 177.84 194.52 106.8 April 1983 183.36 192.84 113.1 195.06 205.15 112.6 April 1984 216.18 216.18 126.8 229.18 229.18 125.8 Married man with two children* (wife‡ working part-time) Married (both partners║ working full-time) At the lowest decile gross earnings April 1978 70.43 126.57 100.0 72.08 129.54 100.0 April 1979 80.04 130.67 103.2 80.68 131.71 101.7 April 1980 95.35 127.86 101.0 97.47 130.70 100.9 April 1981 103.57 123.96 97.9 105.15 125.85 97.2 April 1982 111.79 122.28 96.6 113.29 123.93 95.7 April 1983 122.12 128.44 101.5 123.41 129.80 100.2 April 1984 131.89 138.71 109.6 133.29 140.18 108.2 At the median of gross earnings April 1978 87.37 157.01 100.0 98.76 177.49 100.0 April 1979 99.89 163.07 103.9 111.29 181.68 102.4 April 1980 120.40 161.44 102.8 137.00 183.71 103.5 April 1981 131.46 157.33 100.2 149.48 178.89 100.8 April 1982 142.84 156.25 99.5 162.60 177.86 100.2 April 1983 155.85 163.92 104.4 177.46 186.64 105.2 April 1984 169.47 178.23 113.5 192.88 202.86 114.3 At the highest decile of gross earnings April 1978 116.58 209.50 100.0 146.41 263.12 100.0 April 1979 132.84 216.86 103.5 162.16 264.73 100.6 April 1980 165.52 221.94 105.9 208.60 279.70 106.3 April 1981 185.27 221.72 105.8 235.81 282.22 107.3 April 1982 201.60 220.52 105.3 254.13 277.98 105.6 April 1983 221.04 232.48 111.0 278.56 292.97 111.3 April 1984 241.78 254.29 121.4 302.48 318.13 120.9 * Both children under 11. † Two children under 11, one child 11–15, one child over 16. ‡ Assuming the wife earns the average for part-time women. ║ Assuming husband and wife have earnings at the same quantile of the earnings distribution for full time males and full time females respectively.