| 序号 | 时间 (年) |
数据 (百万美元) |
|---|---|---|
| 1 | 2023 | |
| 2 | 2022 | |
| 3 | 2021 | |
| 4 | 2020 | |
| 5 | 2019 | |
| 6 | 2018 | |
| 7 | 2017 | 30.22 |
| 8 | 2016 | 17.12 |
| 9 | 2015 | 12.71 |
| 10 | 2014 | 25.19 |
| 11 | 2013 | 28.43 |
| 12 | 2012 | 29.55 |
| 13 | 2011 | 21.23 |
| 14 | 2010 | 19.29 |
| 15 | 2009 | 11.26 |
| 16 | 2008 | 14.70 |
| 17 | 1989 | 25.11 |
| 18 | 1988 | 24.89 |
| 19 | 1987 | 19.34 |
| 20 | 1985 | 11.96 |
| 21 | 1984 | 13.79 |
| 22 | 1983 | 17.95 |
| 23 | 1982 | 30.84 |
| 24 | 1981 | 8.01 |
| 25 | 1980 | 9.08 |
