| Year | Volume | Value |
|---|---|---|
| 2024 | 285,706 | 333,319 USD |
| 2023 | 260,445 | 279,829 USD |
| 2022 | 181,072 | 219,690 USD |
| Rank | Country | Volume | Value |
|---|---|---|---|
| 1 | China | 63,676 | 142,838.119 USD |
| 2 | South Africa | 58,100 | 41,752.544 USD |
| 3 | South Korea | 50,020 | 24,213.896 USD |
| 4 | United States | 9,191 | 24,069.154 USD |
| 5 | Hong Kong | 28,812 | 20,398.898 USD |