Where's Trump, Billionaire Contributors to Charities

The share of wealth given up by billionaires to charity. Where is Trump?

Bill Gates: 46%
Michael Dell: 9%
Carlos Slim: 6%
Sergey Brin: 5%
Ma Huateng: 4%
Larry Page: 3%
Mark Zuckerberg: 2.4%
Larry Ellison: 2.1%
Jeff Bezos: 1.9%