• Aon average return on investment for 2023 was 26.66, a 32.24% decline from 2022.
• Aon average return on investment for 2022 was 20.16, a 40.68% increase from 2021.
• Aon average return on investment for 2021 was 14.33, a 18.53% increase from 2020.

Roi - return on investment can be defined as an indicator of how profitable a company is relative to its assets invested by shareholders and long-term bond holders. Calculated by dividing a company's operating earnings by its long-term debt and shareholders equity.