| 2014 | 2015 |
2016 |
2017 | 2018 | 2019 | |
| US$. Mn |
US$. Mn | US$. Mn | US$. Mn | US$. Mn | US$. Mn | |
| Chapter 61 | 112.92 |
89.87 |
93.0 | 100.0 | 101.0 | 114.0 |
| Chapter 62 | 62.96 | 62.32 | 53.0 | 58.0 | 61.0 | 54.0 |
| Chapter 63 | 2.47 | 2.71 | 5.0 | 4.0 | 5.0 | 4.0 |
| Total | 178.35 | 154.90 | 151.0 | 162.0 | 167.0 | 172.0 |
