| 序号 | 时间 (年) |
数据 (亿美元) |
|---|---|---|
| 1 | 2024 | |
| 2 | 2023 | |
| 3 | 2022 | |
| 4 | 2021 | |
| 5 | 2020 | |
| 6 | 2019 | |
| 7 | 2018 | 32.87 |
| 8 | 2017 | 34.30 |
| 9 | 2016 | 30.63 |
| 10 | 2015 | 29.13 |
| 11 | 2014 | 34.98 |
| 12 | 2013 | 30.59 |
| 13 | 2012 | 33.60 |
| 14 | 2011 | 30.40 |
| 15 | 2010 | 28.25 |
| 16 | 2009 | 28.00 |
| 17 | 2008 | 31.01 |
| 18 | 2007 | 32.40 |
| 19 | 2006 | 34.08 |
| 20 | 2005 | 26.89 |
| 21 | 2004 | 21.00 |
| 22 | 2003 | 21.53 |
| 23 | 2002 | 21.50 |
| 24 | 2001 | 22.35 |
| 25 | 2000 | 24.38 |
| 26 | 1999 | 22.09 |
| 27 | 1998 | 21.94 |
| 28 | 1997 | 18.41 |
| 29 | 1996 | 11.01 |
| 30 | 1995 | 9.48 |
| 31 | 1994 | 8.43 |
| 32 | 1993 | 7.22 |
| 33 | 1992 | 8.66 |
| 34 | 1991 | 9.13 |
| 35 | 1990 | 9.31 |
| 36 | 1989 | 9.65 |
| 37 | 1987 | 5.10 |
| 38 | 1986 | 4.56 |
| 39 | 1985 | 4.45 |
| 40 | 1984 | 3.34 |
| 41 | 1983 | 3.52 |
| 42 | 1982 | 3.39 |
| 43 | 1981 | 2.69 |
| 44 | 1980 | 2.44 |
| 45 | 1979 | 1.46 |
| 46 | 1978 | 0.94 |
| 47 | 1977 | 0.89 |
