| 序号 | 时间 (年) |
数据 (%) |
|---|---|---|
| 1 | 2016 | |
| 2 | 2015 | |
| 3 | 2014 | |
| 4 | 2013 | |
| 5 | 2012 | |
| 6 | 2011 | |
| 7 | 2010 | |
| 8 | 2009 | |
| 9 | 2008 | |
| 10 | 2007 | |
| 11 | 2006 | 0.26 |
| 12 | 2005 | 0.07 |
| 13 | 2004 | 0.18 |
| 14 | 2003 | 0.23 |
| 15 | 2002 | 0.10 |
| 16 | 2001 | 0.14 |
| 17 | 2000 | 0.25 |
| 18 | 1999 | 0.15 |
| 19 | 1998 | 0.35 |
| 20 | 1997 | 0.53 |
| 21 | 1996 | 0.13 |
| 22 | 1995 | 0.12 |
| 23 | 1994 | 0.31 |
| 24 | 1993 | 0.44 |
| 25 | 1992 | 0.15 |
| 26 | 1991 | 0.08 |
| 27 | 1990 | 0.17 |
| 28 | 1989 | 1.50 |
| 29 | 1988 | 4.49 |
| 30 | 1987 | 8.61 |
| 31 | 1986 | 3.04 |
| 32 | 1985 | 3.33 |
| 33 | 1984 | 8.02 |
| 34 | 1983 | 6.00 |
| 35 | 1982 | 16.95 |
| 36 | 1981 | 10.59 |
| 37 | 1980 | 14.36 |
| 38 | 1979 | 13.17 |
| 39 | 1978 | 7.87 |
| 40 | 1977 | 10.77 |
| 41 | 1976 | 14.25 |
| 42 | 1975 | 6.16 |
| 43 | 1974 | 7.11 |
| 44 | 1973 | 8.99 |
| 45 | 1972 | 12.96 |
| 46 | 1971 | 14.12 |
| 47 | 1970 | 14.68 |
