| 序号 | 时间 (年) |
数据 (百万美元) |
|---|---|---|
| 1 | 2023 | |
| 2 | 2022 | |
| 3 | 2021 | |
| 4 | 2020 | |
| 5 | 2019 | |
| 6 | 2018 | |
| 7 | 2017 | |
| 8 | 2016 | |
| 9 | 2015 | |
| 10 | 2014 | |
| 11 | 2013 | 21.24 |
| 12 | 2012 | 19.10 |
| 13 | 2011 | 20.60 |
| 14 | 2010 | 19.16 |
| 15 | 2009 | 18.32 |
| 16 | 2008 | 23.13 |
| 17 | 2007 | 21.28 |
| 18 | 2006 | 20.82 |
| 19 | 2005 | 23.12 |
| 20 | 2004 | 21.75 |
| 21 | 2003 | 20.11 |
| 22 | 2002 | 18.36 |
| 23 | 2001 | 20.12 |
| 24 | 2000 | 21.82 |
| 25 | 1999 | 20.18 |
| 26 | 1998 | 23.24 |
| 27 | 1997 | 22.26 |
| 28 | 1996 | 17.19 |
| 29 | 1995 | 17.90 |
| 30 | 1994 | 15.43 |
| 31 | 1993 | 15.00 |
| 32 | 1992 | 15.18 |
| 33 | 1991 | 18.26 |
| 34 | 1990 | 19.35 |
| 35 | 1989 | 22.21 |
| 36 | 1988 | 21.21 |
| 37 | 1987 | 18.16 |
| 38 | 1986 | 17.54 |
| 39 | 1985 | 15.44 |
| 40 | 1984 | 17.00 |
| 41 | 1983 | 22.87 |
| 42 | 1982 | 20.22 |
| 43 | 1981 | 21.96 |
| 44 | 1980 | 19.58 |
