Paragraph 6
Subject to the provisions of paragraph 8, during each relevant period from the relevant date in relation to any Table B amount (“the relevant Table B amount”) interest shall accrue, on 13th October in each year, on the outstanding balance for the time being of the relevant Table B amount at the rate determined in accordance with sub-paragraph (2) in relation to the relevant Table B amount and in relation to the relevant period.
The rate shall be—
per cent per annum.
In this paragraph—
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"P" equals
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“Q”, in relation to any Table B amount, equals the total of the real gross redemption yields on the FT actuaries index-linked gilt edged investment index for stocks over 5-years maturity (5 per cent inflation) as at the close of business on the 14th day of each month (or, where that day is not a business day, the next following business day) in the period of 12 months starting 18 months before the relevant date in relation to that Table B amount;
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“W” means the retail price index for the month of September in the year before the year in which the relevant period begins;
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“Z” means the retail prices index for the month of September in the year in which the relevant period begins;
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Z/W shall be calculated to three decimal places and, if Z/W is less than one, it shall be treated as one;
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“relevant date”, in relation to the relevant Table B amount, means 13th October in the year 10 years earlier than the year specified in column 1 of Table B in relation to that amount; and
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“relevant period” means the period of 12 months during which interest accrues under sub-paragraph (1), beginning on 14th October in any year.