| 2015 | 2016 |
2017 |
2018 | 2019 | 2020 | |
| US$. Mn |
US$. Mn | US$. Mn | US$. Mn | US$. Mn | US$. Mn | |
| Chapter 61 | 99.71 |
98.36 |
86.0 | 102.0 | 121.03 | 82.81 |
| Chapter 62 | 82.77 | 68.51 | 70.0 | 79.0 | 75.96 | 62.25 |
| Chapter 63 | 2.71 | 4.70 | 3.0 | 4.0 | 4.86 | 7.72 |
| Total | 185.19 | 171.57 | 159.0 | 185.0 | 201.85 | 152.78 |
