| 序号 |
时间(年) |
数据(单位：万头) |
| 1 |
2021 |
|
| 2 |
2020 |
|
| 3 |
2019 |
|
| 4 |
2018 |
|
| 5 |
2017 |
|
| 6 |
2016 |
|
| 7 |
2015 |
16.42 |
| 8 |
2014 |
17.08 |
| 9 |
2013 |
18.77 |
| 10 |
2012 |
17.70 |
| 11 |
2011 |
19.13 |
| 12 |
2010 |
19.89 |
| 13 |
2009 |
20.37 |
| 14 |
2008 |
20.66 |
| 15 |
2007 |
20.74 |
| 16 |
2006 |
22.97 |
| 17 |
2005 |
35.54 |
| 18 |
2004 |
39.25 |
| 19 |
2003 |
38.90 |
| 20 |
2002 |
39.63 |
| 21 |
2001 |
39.25 |
| 22 |
2000 |
38.95 |
| 23 |
1999 |
40.64 |
| 24 |
1998 |
43.52 |
| 25 |
1997 |
46.36 |
| 26 |
1996 |
49.48 |
| 27 |
1995 |
50.32 |
| 28 |
1994 |
50.72 |
| 29 |
1993 |
54.07 |
| 30 |
1992 |
60.50 |
| 31 |
1991 |
65.05 |
| 32 |
1990 |
68.01 |
| 33 |
1989 |
69.29 |
| 34 |
1988 |
71.11 |
| 35 |
1987 |
74.73 |
| 36 |
1986 |
75.81 |
| 37 |
1985 |
76.10 |
| 38 |
1984 |
78.40 |
| 39 |
1983 |
80.60 |
| 40 |
1982 |
82.70 |
| 41 |
1981 |
82.70 |
| 42 |
1980 |
83.00 |
| 43 |
1979 |
84.80 |
| 44 |
1978 |
82.60 |
