1. Robin Arora: £1.75bn (Discount stores B&M Bargains) – aged 29.

2. Tom Persson, £624million (Fashion) – aged 29

3. Fawn and India Rose James: £454million (Property) – aged 23

4. Thomas Mackie, 27, and family: £350million (Electrical goods) – aged 27

5. Tim, 29, and Pollyanna, 28, Gredley and family: £184million (Property and horse-racing)

6. Peter Cashmore: £150million (Internet) -aged 29 

7. Lewis Hamilton: £88million (Motor racing) – aged 30

8. Wayne and Coleen Rooney: £86million (Football) – aged 29

9. Daniel Radcliffee: £69million (Films) – aged 25

10. Robert Pattinson: £65million (Films) – aged 28 

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