| 序号 | 时间 (年) |
数据 (万美元) |
|---|---|---|
| 1 | 2021 | |
| 2 | 2020 | |
| 3 | 2019 | |
| 4 | 2018 | |
| 5 | 2017 | |
| 6 | 2016 | |
| 7 | 2015 | 14511.64 |
| 8 | 2014 | 21064.60 |
| 9 | 2013 | 41761.75 |
| 10 | 2012 | 47860.57 |
| 11 | 2011 | 42287.92 |
| 12 | 2010 | 30943.57 |
| 13 | 2009 | 18539.69 |
| 14 | 2008 | 36305.93 |
| 15 | 2007 | 36017.74 |
| 16 | 2006 | 31549.41 |
| 17 | 2005 | 30292.17 |
| 18 | 2004 | 20335.92 |
| 19 | 2003 | 23306.81 |
| 20 | 2002 | 16308.36 |
| 21 | 2001 | 28512.68 |
| 22 | 2000 | 24266.25 |
| 23 | 1999 | 24753.40 |
| 24 | 1998 | 31803.41 |
| 25 | 1997 | 39692.58 |
| 26 | 1996 | 43215.15 |
| 27 | 1995 | 32133.82 |
| 28 | 1994 | 23544.17 |
| 29 | 1993 | 30669.99 |
| 30 | 1992 | 32919.84 |
| 31 | 1991 | 26681.26 |
| 32 | 1990 | 20572.54 |
| 33 | 1989 | 16789.50 |
| 34 | 1988 | 12231.36 |
| 35 | 1987 | 9728.88 |
| 36 | 1986 | 7247.54 |
| 37 | 1985 | 6403.22 |
| 38 | 1984 | 6438.68 |
| 39 | 1983 | 7569.85 |
| 40 | 1982 | 9540.39 |
| 41 | 1981 | 8469.40 |
| 42 | 1980 | 4332.02 |
| 43 | 1979 | 4183.95 |
| 44 | 1978 | 3565.50 |
| 45 | 1977 | 3803.43 |
| 46 | 1976 | 6894.06 |
