| 序号 |
时间(年) |
数据(单位：万头) |
| 1 |
2025 |
|
| 2 |
2024 |
|
| 3 |
2023 |
|
| 4 |
2022 |
|
| 5 |
2021 |
|
| 6 |
2020 |
|
| 7 |
2019 |
12.65 |
| 8 |
2018 |
18.36 |
| 9 |
2017 |
18.38 |
| 10 |
2016 |
17.86 |
| 11 |
2015 |
31.15 |
| 12 |
2014 |
79.04 |
| 13 |
2013 |
244.32 |
| 14 |
2012 |
274.88 |
| 15 |
2011 |
294.69 |
| 16 |
2010 |
297.32 |
| 17 |
2009 |
300.89 |
| 18 |
2008 |
286.28 |
| 19 |
2007 |
227.94 |
| 20 |
2006 |
289.02 |
| 21 |
2005 |
320.81 |
| 22 |
2004 |
327.16 |
| 23 |
2003 |
318.00 |
| 24 |
2002 |
305.24 |
| 25 |
2001 |
316.77 |
| 26 |
2000 |
322.64 |
| 27 |
1999 |
290.65 |
| 28 |
1998 |
291.58 |
| 29 |
1997 |
265.59 |
| 30 |
1996 |
209.40 |
| 31 |
1995 |
215.40 |
| 32 |
1994 |
205.45 |
| 33 |
1993 |
224.59 |
| 34 |
1992 |
279.79 |
| 35 |
1991 |
216.76 |
| 36 |
1990 |
201.66 |
| 37 |
1989 |
206.88 |
| 38 |
1988 |
194.42 |
| 39 |
1987 |
189.29 |
| 40 |
1986 |
214.44 |
| 41 |
1985 |
200.64 |
| 42 |
1984 |
187.23 |
| 43 |
1983 |
205.61 |
| 44 |
1982 |
201.74 |
| 45 |
1981 |
195.19 |
| 46 |
1980 |
203.79 |
| 47 |
1979 |
252.22 |
| 48 |
1978 |
197.29 |
| 49 |
1975 |
179.62 |
| 50 |
1970 |
175.65 |
| 51 |
1965 |
138.15 |
| 52 |
1962 |
68.40 |
| 53 |
1957 |
63.26 |
| 54 |
1952 |
16.72 |
| 55 |
1949 |
12.33 |
