| 序号 | 时间 (年) |
数据 (万美元) |
|---|---|---|
| 1 | 2020 | |
| 2 | 2019 | |
| 3 | 2018 | |
| 4 | 2017 | |
| 5 | 2016 | |
| 6 | 2015 | |
| 7 | 2014 | |
| 8 | 2013 | |
| 9 | 2012 | |
| 10 | 2011 | |
| 11 | 2010 | 32053.73 |
| 12 | 2009 | 29473.24 |
| 13 | 2008 | 28423.54 |
| 14 | 2007 | 23632.89 |
| 15 | 2006 | 20089.94 |
| 16 | 2005 | 17698.37 |
| 17 | 2004 | 15024.33 |
| 18 | 2003 | 9500.99 |
| 19 | 2002 | 9042.79 |
| 20 | 2001 | 7181.75 |
| 21 | 2000 | 6193.12 |
| 22 | 1999 | 6845.14 |
| 23 | 1998 | 7604.52 |
| 24 | 1997 | 8850.22 |
| 25 | 1996 | 11620.71 |
| 26 | 1995 | 8732.07 |
| 27 | 1994 | 7087.84 |
| 28 | 1993 | 8463.34 |
| 29 | 1992 | 12920.69 |
| 30 | 1991 | 11643.81 |
| 31 | 1990 | 14907.55 |
| 32 | 1989 | 12804.37 |
| 33 | 1988 | 10514.75 |
| 34 | 1987 | 11881.08 |
| 35 | 1986 | 10367.42 |
| 36 | 1985 | 8696.69 |
| 37 | 1984 | 7676.05 |
| 38 | 1983 | 7062.82 |
| 39 | 1982 | 8829.41 |
| 40 | 1981 | 9707.01 |
| 41 | 1980 | 7387.37 |
| 42 | 1979 | 4523.28 |
| 43 | 1978 | 3600.17 |
| 44 | 1977 | 2764.98 |
| 45 | 1976 | 2377.06 |
| 46 | 1975 | 2793.11 |
| 47 | 1974 | 1449.08 |
