UK BanksReutersThe UK's Big Four high street banks all have gender pay gaps of more than 35%

LONDON - New figures show that men earn an almost 60% more than women on average at some of the UK's top financial institutions.

UK companies with more than 250 employees have been forced to reveal their gender pay gaps under new rules introduced by the British government.

Business Insider rounded up all the data that has so far been published by the largest banks, insurers, and asset managers in the UK. It includes international firms like Goldman Sachs and JPMorgan, which have large operations in Britain.

It is, in theory, possible for firms to have a gender pay gap where women earn more than men on average but it is a rarity. Average pay at all firms on this list is higher for men than that for women.

Institutions are ranked in ascending order by the size of their mean pay gap between men and women, while median pay gaps are also included.

This list will be updated as more firms release their pay stats as the government's April 5 deadline approaches.

Get the latest Goldman Sachs stock price here.

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State Street Global Advisors — 18.1%

State Street Global Advisors — 18.1%

Sector: Banking

Mean pay gap: 18.1%

Median pay gap: 11.8%

Legal & General — 21%

Legal & General — 21%

Sector: Insurance

Mean pay gap: 21%

Median pay gap: 21.4%

Metro Bank — 22.4%

Metro Bank — 22.4%

Sector: Banking

Mean pay gap: 22.4%

Median pay gap: 13.5%

London Stock Exchange — 22.4%

London Stock Exchange — 22.4%

Sector: Market infrastructure

Mean pay gap: 22.4%

Median pay gap: 8.9%

Lloyd's of London — 27.7%

Lloyd's of London — 27.7%

Sector: Insurance/market infrastructure

Mean pay gap: 27.7%

Median pay gap: 32.1%

Aberdeen Asset Management — 28%

Aberdeen Asset Management — 28%

Sector: Asset management

Mean pay gap: 28%

Median pay gap: 20%

Coutts — 28.2%

Coutts — 28.2%

Sector: Banking

Mean pay gap: 28.2%

Median pay gap: 24.4%

Old Mutual — 29%

Old Mutual — 29%

Sector: Asset management

Mean pay gap: 29%

Median pay gap: 31%

Standard Chartered — 30.4%

Standard Chartered — 30.4%

Sector: Banking

Mean pay gap: 30.4%

Median pay gap: 31.4%

TSB — 31%

TSB — 31%

Sector: Banking

Mean pay gap: 31%

Median pay gap: 24%

Virgin Money — 32.5%

Virgin Money — 32.5%

Sector: Banking

Mean pay gap: 32.5%

Median pay gap: 38.4%

Societe Generale — 33.5%

Societe Generale — 33.5%

Sector: Banking

Mean pay gap: 33.5%

Median pay gap: 17%

Schroders —35.9%

Schroders —35.9%

Sector: Asset management

Mean pay gap: 35.9%

Median pay gap: 44.8%

Santander — 37.1%

Santander — 37.1%

Sector: Banking

Mean pay gap: 37.1%

Median pay gap: 29.1%

RBS — 37.2%

RBS — 37.2%

Sector: Banking

Mean pay gap: 37.2%

Median pay gap: 36.5%

Lloyds Bank — 37.6%

Lloyds Bank — 37.6%

Sector: Banking

Mean pay gap: 37.6%

Median pay gap: 42.7%

Jupiter Asset Management — 38%

Jupiter Asset Management — 38%

Sector: Asset management

Mean pay gap: 38%

Median pay gap: 25%

Barclays — 48%

Barclays — 48%

Sector: Banking

Mean pay gap: 48%

Median pay gap: 43.5%

JPMorgan — 54%

JPMorgan — 54%

Sector: Banking

Mean pay gap: 54%

Median pay gap: 54%

Goldman Sachs — 55.5%

Goldman Sachs — 55.5%

Sector: Banking

Mean pay gap: 55.5%

Median pay gap: 36.4%

HSBC — 59%

HSBC — 59%

Sector: Banking

Mean pay gap: 59%

Median pay gap: 29%