UNCTAD Herfindahl-Hirschmann index of how concentrated exports are in a few products (lower is less concentrated). Source: UNCTAD. Retrieved 19 Aug 2026.
| Period | Export Concentration Index |
|---|---|
| 2025 | 0.485 |
| 2024 | 0.472 |
| 2023 | 0.502 |
| 2022 | 0.498 |
| 2021 | 0.467 |
| 2020 | 0.482 |
| 2019 | 0.387 |
| 2018 | 0.413 |
| 2017 | 0.786 |
| 2016 | 0.508 |
| 2015 | 0.499 |
| 2014 | 0.601 |
54 countries carry a recent export concentration index figure. Each opens its own page with the history, the source and the API request.
136 of 207 indicators carry a figure for Seychelles, grouped by topic.