| 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 | 40436.00 |
| 12 | 2009 | 37622.59 |
| 13 | 2008 | 36062.78 |
| 14 | 2007 | 30586.02 |
| 15 | 2006 | 26438.40 |
| 16 | 2005 | 25080.35 |
| 17 | 2004 | 23976.08 |
| 18 | 2003 | 20477.07 |
| 19 | 2002 | 14888.28 |
| 20 | 2001 | 13001.54 |
| 21 | 2000 | 11795.42 |
| 22 | 1999 | 13063.93 |
| 23 | 1998 | 14926.81 |
| 24 | 1997 | 16788.44 |
| 25 | 1996 | 20140.46 |
| 26 | 1995 | 16425.58 |
| 27 | 1994 | 12533.22 |
| 28 | 1993 | 12823.02 |
| 29 | 1992 | 20325.53 |
| 30 | 1991 | 28625.32 |
| 31 | 1990 | 24409.69 |
| 32 | 1989 | 19582.25 |
| 33 | 1988 | 20017.91 |
| 34 | 1987 | 19657.51 |
| 35 | 1986 | 17228.99 |
| 36 | 1985 | 13182.26 |
| 37 | 1984 | 11260.84 |
| 38 | 1983 | 11772.76 |
| 39 | 1982 | 13602.60 |
| 40 | 1981 | 14596.03 |
| 41 | 1980 | 16676.96 |
| 42 | 1979 | 14539.19 |
| 43 | 1978 | 13416.45 |
| 44 | 1977 | 9028.42 |
| 45 | 1976 | 6001.24 |
| 46 | 1975 | 6910.92 |
| 47 | 1974 | 3822.94 |
