| 2015 | 2016 |
2017 |
2018 | 2019 | 2020 | |
| US$. Mn |
US$. Mn | US$. Mn | US$. Mn | US$. Mn | US$. Mn | |
| Chapter 61 | 114.53 |
112.0 |
107.0 | 106.0 | 119.0 | 90.85 |
| Chapter 62 | 80.57 | 72.0 | 91.0 | 79.0 | 84.0 | 59.96 |
| Chapter 63 | 1.64 | 1.0 | 2.0 | 1.0 | 2.0 | 30.27 |
| Total | 196.74 | 185.0 | 200.0 | 186.0 | 205.0 | 181.08 |
