The top 10 people on this year's Forbes 400 list are:

The top 10 people on this year’s Forbes 400 list are:

- Bill Gates, $72 billion

- Warren Buffett, $58.5 billion

- Larry Ellison, $41 billion

- Charles Koch, $36 billion

- David Koch, $36 billion

- Christy Walton & family, $35.4 billion

- Jim Walton, $33.8 billion

- Alice Walton, $33.5 billion

- S. Robson Walton, $33.3 billion

- Michael Bloomberg, $31 billion