| 2016 | 2017 |
2018 |
2019 | 2020 | 2021 | |
| US$. Mn |
US$. Mn | US$. Mn | US$. Mn | US$. Mn | US$. Mn | |
| Chapter 61 | 105.08 |
95.0 |
87.0 | 103.19 | 99.82 | 94.83 |
| Chapter 62 | 79.87 | 73.0 | 74.0 | 91.70 | 93.50 | 74.93 |
| Chapter 63 | 1.47 | 2.0 | 1.0 | 2.24 | 2.12 | 2.40 |
| Total | 186.42 | 170.0 | 162.0 | 197.13 | 195.44 | 172.16 |
