| 序号 | 时间 (年) |
数据 (万美元) |
|---|---|---|
| 1 | 2022 | |
| 2 | 2021 | |
| 3 | 2020 | |
| 4 | 2019 | |
| 5 | 2018 | |
| 6 | 2017 | |
| 7 | 2016 | |
| 8 | 2015 | |
| 9 | 2014 | |
| 10 | 2013 | |
| 11 | 2012 | 43391.27 |
| 12 | 2011 | 41169.60 |
| 13 | 2010 | 37682.73 |
| 14 | 2009 | 22182.53 |
| 15 | 2008 | 34944.39 |
| 16 | 2007 | 30193.44 |
| 17 | 2006 | 21726.15 |
| 18 | 2005 | 19384.24 |
| 19 | 2004 | 21602.84 |
| 20 | 2003 | 17272.37 |
| 21 | 2002 | 15290.18 |
| 22 | 2001 | 14722.88 |
| 23 | 2000 | 13639.24 |
| 24 | 1999 | 17692.56 |
| 25 | 1998 | 14233.37 |
| 26 | 1997 | 11599.20 |
| 27 | 1996 | 12614.93 |
| 28 | 1995 | 19432.96 |
| 29 | 1994 | 14216.83 |
| 30 | 1993 | 14656.77 |
| 31 | 1992 | 15604.83 |
| 32 | 1991 | 14598.76 |
| 33 | 1990 | 12636.74 |
| 34 | 1989 | 10047.32 |
| 35 | 1988 | 11435.22 |
| 36 | 1987 | 9083.75 |
| 37 | 1986 | 7161.30 |
| 38 | 1985 | 3761.72 |
| 39 | 1984 | 5832.16 |
| 40 | 1983 | 5016.72 |
| 41 | 1982 | 4800.88 |
| 42 | 1981 | 6680.86 |
| 43 | 1980 | 6228.71 |
| 44 | 1979 | 4336.18 |
| 45 | 1978 | 3867.39 |
| 46 | 1977 | 3254.64 |
| 47 | 1976 | 3083.07 |
| 48 | 1975 | 2813.18 |
| 49 | 1974 | 2201.45 |
