| 年份 | 贸易额(占国民生产总值比例) |
|---|---|
| 2022 | — |
| 2021 | 39.870045409122 |
| 2020 | 44.233434084157 |
| 2019 | 45.826725702541 |
| 2018 | 43.389548119948 |
| 2017 | 41.951344872836 |
| 2016 | 40.822834830936 |
| 2015 | 41.623108411543 |
| 2014 | 42.471742409125 |
| 2013 | 41.27489915379 |
| 2012 | 43.166735103081 |
| 2011 | 41.842551094435 |
| 2010 | 40.520330639861 |