| 年份 | 单位:万头 |
| 含“(E)”其对应值为系统预测,仅供参考。 | |
| 2027(E) | 购买后可见 » |
| 2026(E) | 购买后可见 » |
| 2025(E) | 购买后可见 » |
| 2024 | 购买后可见 » |
| 2023 | 购买后可见 » |
| 2022 | 购买后可见 » |
| 2021 | 购买后可见 » |
| 2020 | 购买后可见 » |
| 2019 | 购买后可见 » |
| 2018 | 购买后可见 » |
| 2017 | 购买后可见 » |
| 2016 | 购买后可见 » |
| 2015 | 购买后可见 » |
| 2014 | 33.35 |
| 2013 | 31.58 |
| 2012 | 29.50 |
| 2011 | 27.30 |
| 2010 | 25.60 |
| 2009 | 24.80 |
| 2008 | 24.00 |
| 2007 | 24.20 |
| 2006 | 26.90 |
| 2005 | 26.60 |
| 2004 | 26.20 |
| 2003 | 26.50 |
| 2002 | 26.40 |
| 2001 | 27.90 |
| 2000 | 32.60 |
| 1999 | 33.00 |
| 1998 | 33.50 |
| 1997 | 35.00 |
| 1996 | 34.50 |
| 1995 | 35.10 |
| 1994 | 35.60 |
| 1993 | 37.30 |
| 1992 | 40.10 |
| 1991 | 44.10 |
| 1990 | 46.30 |
| 1989 | 47.50 |
| 1988 | 47.20 |
| 1987 | 47.50 |
| 1986 | 50.40 |
| 1985 | 53.00 |
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