| 年份 | 贸易额(占国民生产总值比例) |
|---|---|
| 2022 | — |
| 2021 | 25.481400266712 |
| 2020 | 23.383761877796 |
| 2019 | 26.451949473785 |
| 2018 | 27.610379272096 |
| 2017 | 27.279161022007 |
| 2016 | 26.586999360461 |
| 2015 | 27.812233502497 |
| 2014 | 29.997999780085 |
| 2013 | 30.002367141121 |
| 2012 | 30.68183536573 |
| 2011 | 30.842486241194 |
| 2010 | 28.219895234673 |