| 序号 | 时间 (年) |
数据 (亿美元) |
|---|---|---|
| 1 | 2024 | |
| 2 | 2023 | |
| 3 | 2022 | |
| 4 | 2021 | |
| 5 | 2020 | |
| 6 | 2019 | |
| 7 | 2018 | 31.32 |
| 8 | 2017 | 32.94 |
| 9 | 2016 | 29.44 |
| 10 | 2015 | 27.92 |
| 11 | 2014 | 33.71 |
| 12 | 2013 | 29.66 |
| 13 | 2012 | 32.49 |
| 14 | 2011 | 28.57 |
| 15 | 2010 | 26.95 |
| 16 | 2009 | 26.73 |
| 17 | 2008 | 29.77 |
| 18 | 2007 | 31.20 |
| 19 | 2006 | 32.89 |
| 20 | 2005 | 25.72 |
| 21 | 2004 | 19.94 |
| 22 | 2003 | 20.44 |
| 23 | 2002 | 20.34 |
| 24 | 2001 | 21.13 |
| 25 | 2000 | 22.61 |
| 26 | 1999 | 21.27 |
| 27 | 1998 | 21.29 |
| 28 | 1997 | 17.81 |
| 29 | 1996 | 9.99 |
| 30 | 1995 | 8.72 |
| 31 | 1994 | 7.88 |
| 32 | 1993 | 6.60 |
| 33 | 1992 | 8.12 |
| 34 | 1991 | 7.91 |
| 35 | 1990 | 8.11 |
| 36 | 1989 | 8.78 |
| 37 | 1987 | 5.08 |
| 38 | 1986 | 4.25 |
| 39 | 1985 | 4.08 |
| 40 | 1984 | 3.27 |
| 41 | 1983 | 3.11 |
| 42 | 1982 | 2.99 |
| 43 | 1981 | 2.39 |
| 44 | 1980 | 2.13 |
| 45 | 1979 | 1.35 |
| 46 | 1978 | 0.86 |
| 47 | 1977 | 0.81 |
