U.S. investors aren't the only people in the world worrying about not having enough money for a comfortable retirement, according to a new survey.

People in Canada, Europe, Australia and New Zealand also have those fears, according to Dimensional’s 2017 Global Investor Feedback Survey.

The fund company surveyed 19,000 investors from those nations and the U.S. and found that 37 percent said their greatest financial fear is not having enough money to sustain a comfortable standard of living in retirement.

That was the top concern cited by respondents, followed by the 31 percent who said they were most worried about enduring a significant loss in a market downturn.

“It’s natural for investors to have fears about what is likely their most important financial goal—saving for retirement,” says Dave Butler, Dimensional's co-CEO and head of global financial advisor services. “Advisors who help their clients understand what they can and can’t control are able to create a different investing experience, which helps ease their clients’ concerns.”

About 13 percent of investors said their greatest fear was outliving their money, while 12 percent said they most feared unforeseen expenses, according to the survey. 

The full survey can be viewed here.