| Year | Volume | Value |
|---|---|---|
| 2024 | 3,991 | 4,693 USD |
| Rank | Country | Volume | Value |
|---|---|---|---|
| 1 | Angola | 2,979 | 3,805.074 USD |
| 2 | Republic of the Congo | 1,009 | 880.252 USD |
| Year | Volume | Value |
|---|---|---|
| 2024 | 13,224 | 14,886 USD |
| 2023 | 12,198 | 17,223 USD |
| 2022 | 149,809 | 284,038 USD |
| Rank | Country | Volume | Value |
|---|---|---|---|
| 1 | India | 5,429 | 5,623.145 USD |
| 2 | South Africa | 1,750.55 | 3,936.207 USD |
| 3 | China | 3,205.3 | 3,315.27 USD |
| 4 | United States | 2,838.91 | 2,011.332 USD |