A survey of FTSE100 businesses by Incomes Data Services found pay for NEDs has risen by more than one third in the past year.
But The Financial Times reported that just 11% of non-executives are female, in contrast to 13% who are knights or lords.
The survey found that NEDs earned between £34,000 and £52,000 while non-executive chairmen took home an average of £218,000.
Demand for NEDs has increased – along with their number and responsibilities – since the Higgs report recommended that they should comprise at least half of boards.
The statistics were compiled from information gathered on 645 non-executives.
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