| 序号 | 时间 (年) |
数据 (万美元) |
|---|---|---|
| 1 | 2017 | |
| 2 | 2016 | |
| 3 | 2015 | |
| 4 | 2014 | |
| 5 | 2013 | |
| 6 | 2012 | |
| 7 | 2011 | -10183.17 |
| 8 | 2010 | -9933.64 |
| 9 | 2009 | -7974.20 |
| 10 | 2008 | -19401.07 |
| 11 | 2007 | -8255.15 |
| 12 | 2006 | -6317.54 |
| 13 | 2005 | -25897.63 |
| 14 | 2004 | -28654.13 |
| 15 | 2003 | -11161.00 |
| 16 | 2002 | -7024.14 |
| 17 | 2001 | -5310.62 |
| 18 | 2000 | -5404.39 |
| 19 | 1999 | -8937.96 |
| 20 | 1998 | -5870.38 |
| 21 | 1997 | -3784.65 |
| 22 | 1996 | 19945.45 |
| 23 | 1995 | 7040.01 |
| 24 | 1994 | 18956.27 |
| 25 | 1993 | 13842.03 |
| 26 | 1992 | 15820.33 |
| 27 | 1991 | 1173.12 |
| 28 | 1990 | 2010.60 |
| 29 | 1989 | 5910.34 |
| 30 | 1988 | 8186.57 |
| 31 | 1987 | 2675.08 |
| 32 | 1986 | 4596.90 |
| 33 | 1985 | 2098.41 |
| 34 | 1984 | -2041.13 |
| 35 | 1983 | -9011.64 |
| 36 | 1982 | -9243.08 |
| 37 | 1981 | -15690.71 |
| 38 | 1980 | -8545.45 |
| 39 | 1979 | -6809.16 |
| 40 | 1978 | -4341.33 |
| 41 | 1977 | -6294.63 |
| 42 | 1976 | -7374.01 |
| 43 | 1975 | -5286.94 |
| 44 | 1974 | -6490.91 |
| 45 | 1973 | -5693.98 |
| 46 | 1972 | -5142.18 |
| 47 | 1971 | -4757.21 |
| 48 | 1970 | -5171.21 |
| 49 | 1969 | -4513.36 |
| 50 | 1968 | -2981.54 |
| 51 | 1967 | -2336.35 |
