| 序号 | 时间 (年) |
数据 (‰) |
|---|---|---|
| 1 | 2016 | |
| 2 | 2013 | |
| 3 | 2012 | |
| 4 | 2011 | |
| 5 | 2010 | |
| 6 | 2009 | |
| 7 | 2008 | 2.87 |
| 8 | 2007 | 3.51 |
| 9 | 2006 | 1.68 |
| 10 | 2005 | 1.72 |
| 11 | 2004 | 2.90 |
| 12 | 2003 | -0.23 |
| 13 | 2002 | 3.09 |
| 14 | 2001 | 2.18 |
| 15 | 2000 | 2.93 |
| 16 | 1999 | 2.00 |
| 17 | 1998 | 6.09 |
| 18 | 1997 | 2.41 |
| 19 | 1996 | 2.59 |
| 20 | 1995 | 2.95 |
| 21 | 1994 | 2.30 |
