When rich people have free time, they have the means for extravagant hobbies, whether it’s collecting classic cars or jet-setting across the globe. But the most common hobby they pursue isn’t a gaudy display of wealth – it’s philanthropy.

In a new report from Wealth-X, a market research firm that focuses on ultra-high net worth (UHNW) individuals, we get a peek at the top passions, interests, and hobbies of people with $30 million or more in assets.

Philanthropy proved the most popular hobby, with more than one-third of the world’s wealthiest people pursuing charitable activities. This generosity comes as no surprise, though, thanks to the rise in recognition of endeavors such as The Giving Pledge, a promise started by Bill Gates and Warren Buffett to commit more than half of their wealth to philanthropic causes during their lifetime.

The second most popular interest among this group is watching, playing, and investing in sports, including tennis, golf, skiing, American football, and most of all, soccer, according to Wealth-X.

From art and fashion to hunting and fishing, read on to see the 20 most common hobbies and passions of the wealthiest of the wealthy: the world’s billionaires – culled from Wealth-X’s 2016 billionaire census – as well as the percentage of billionaires who participate in each.

An earlier version of this post was written by Emmie Martin.

20. Skiing — 7.2%

Foto: Dieter Mateschitz, billionaire owner of the Red Bull energy drink company, attends the men’s downhill at the Hahnenkamm Ski Races in 2004 in Austria. source Sean Gallup/Getty

19. Watches — 7.7%

Foto: source Getty Images/Levent Kulu

18. Fishing — 7.8%

Foto: source Tim Regan/Flickr

17. Jewelry — 8.1%

Foto: Yvette Prieto flashes the rock given to her by husband Michael Jordan, billionaire owner of the Charlotte Bobcats. source Streeter Lecka/Getty

16. Hunting — 8.8%

Foto: source Shutterstock

15. Dining — 10.9%

Foto: Uber founder Travis Kalanick cooks broccoli. source Reuters/Beck Diefenbach

14. Golf — 11%

Foto: President Donald Trump golfing. source REUTERS/David Moir

13. Cultural events — 12.1%

Foto: Virgin chairman Richard Branson celebrates Virgin Atlantic’s expansion into India in Mumbai. source Rajanish Kakade/AP

12. Reading — 12.3%

Foto: Bill Gates shares what he’s reading. source Bill Gates Foundation

11. Football/soccer — 13.1%

Foto: Chelsea owner Roman Abramovich looks on as Chelsea win the Premier League title in London, England in 2015. source Clive Mason/Getty

10. Collectibles — 14.1%

Foto: source Julie Zeveloff/Business Insider

9. Automobiles — 14.5%

Foto: Tesla and SpaceX founder Elon Musk speaks during an event to launch the new Tesla Model X Crossover SUV. source Justin Sullivan/Getty Images

8. Health and exercise — 14.8%

Foto: Facebook founder Mark Zuckerberg loves to run. source Facebook

7. Boating — 14.9%

Foto: Oracle founder and CTO Larry Ellison, who has a net worth of more than $48 billion, celebrates during the America’s Cup sailing competition. source Ezra Shaw/Getty

6. Wine and spirits — 15.9%

Foto: John Paul DeJoria is the founder of Patron Tequila. source Amy Sussman/Getty

5. Politics — 22.2%

Foto: Billionaire Michael Bloomberg served 12 years as mayor of New York City. source Getty Images

4. Fashion and style — 25.2%

Foto: Warren Buffett arrives dressed to the nines at a State Dinner in honor of British Prime Minister David Cameron at the White House. source Brendan Hoffman/Getty Images

3. Art — 28.7%

Foto: Walmart heiress Alice Walton’s immense art collection can be viewed at the Crystal Bridges Museum of American Art in Bentonville, Arkansas. source D Dipasupil/Getty Images

2. Travel — 31%

Foto: Richard Branson poses alongside Virgin Australia staff. source Don Arnold/Getty

1. Philanthropy — 56.3%