According to Artnet and no reason to disagree the total sales of his pieces at auction brings him in at 6th in the table
What's really interesting is that he is not in the figs for individual pieces so it's the numbers game that builds up the amount
TOP TEN ARTISTS BY VALUE
What a wonderful 50th birthday present for Damien Hirst. After celebrating in June, the artist now tops our list of British artists by value, with 336 lots sold for just under $25 million. This ranking is by aggregate of performance at auction during 2015.
1. Damien Hirst: $24,679,235 2. David Hockney: $18,246,587 3. Anish Kapoor: $18,184,036 4. Frank Auerbach: $11,878,482 5. Chris Ofili: $7,390,212 6. Banksy: $6,126,614 7. Howard Hodgkin: $5,603,134 8. Antony Gormley: $5,162,684 9. Gilbert & George: $4,810,027 10. Marc Quinn: $3,898,597