| 序号 | 时间 (年) |
数据 (万美元) |
|---|---|---|
| 1 | 2021 | |
| 2 | 2020 | |
| 3 | 2019 | |
| 4 | 2018 | |
| 5 | 2017 | |
| 6 | 2016 | |
| 7 | 2015 | |
| 8 | 2014 | |
| 9 | 2013 | |
| 10 | 2012 | |
| 11 | 2011 | 15284.93 |
| 12 | 2010 | 12723.27 |
| 13 | 2009 | 12311.89 |
| 14 | 2008 | 20040.81 |
| 15 | 2007 | 23448.20 |
| 16 | 2006 | 18635.95 |
| 17 | 2005 | 13717.37 |
| 18 | 2004 | 5419.29 |
| 19 | 2003 | 4957.95 |
| 20 | 2002 | 7029.85 |
| 21 | 2001 | 7786.89 |
| 22 | 2000 | 8068.06 |
| 23 | 1999 | 6955.95 |
| 24 | 1998 | 8658.17 |
| 25 | 1997 | 6681.01 |
| 26 | 1996 | 8116.27 |
| 27 | 1995 | 9243.28 |
| 28 | 1994 | 8229.52 |
| 29 | 1993 | 10295.78 |
| 30 | 1992 | 13047.06 |
| 31 | 1991 | 11132.23 |
| 32 | 1990 | 8876.47 |
| 33 | 1989 | 8223.67 |
| 34 | 1988 | 6725.17 |
| 35 | 1987 | 6022.56 |
| 36 | 1986 | 5082.21 |
| 37 | 1985 | 3806.23 |
| 38 | 1984 | 3776.12 |
| 39 | 1983 | 4384.54 |
| 40 | 1982 | 3695.00 |
| 41 | 1981 | 6200.61 |
| 42 | 1980 | 7700.22 |
| 43 | 1979 | 7292.16 |
| 44 | 1978 | 5623.61 |
| 45 | 1977 | 3918.11 |
| 46 | 1976 | 2803.93 |
| 47 | 1975 | 1759.11 |
| 48 | 1974 | 730.77 |
