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The latest ONS data show that the gender pay gap for adults is 9.4 per cent, based on the median earnings of full-time employees.
The Halifax survey, now in its 29th year, used data drawn from nearly 1,800 parents and children aged 15 and under which was weighted to be entirely representative of previous years. The high street bank also found that nearly four-fifths of children were saving some of their pocket money, with nearly one in eight saving all of it.
On average, parents reported that they started giving regular pocket money between the ages of six and seven.
Giles Martin, head of Halifax savings, said he found it "reassuring" to see that levels of pocket money were increasing.
"Some parents are clearly not feeling the pinch in the same way that they have done in recent years, when weekly pocket money dipped as low as £5.89," he said.
"It's likely it will be a few more years until we reach the dizzy heights of £8.37 in 2005 though, when we saw the highest average pocket money since our records began in 1987."
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