Salaire Charles Koch

Forbes: Networth Apr. 2020: $38.2B, Networth Apr. 2021: $46.4B
Bloomberg Nov 2019: $ 61.7 billion
Washington Post: Annual net income averages just slightly more than $1 billion a year.

Source

• Picture: Wikipedia
• Text: Wikipedia
• Text: SkyTG24
• Text: Washington Post
• Text: Forbes

Update: 2021-3