| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 2026 | 18 | 千头 | 2026-9 |
| 2025 | 19 | 千头 | 2026-9 |
| 2024 | 18 | 千头 | 2026-9 |
| 2023 | 18 | 千头 | 2026-9 |
| 2022 | 20 | 千头 | 2026-9 |
| 2021 | 20 | 千头 | 2026-9 |
| 2020 | 20 | 千头 | 2026-9 |
| 2019 | 20 | 千头 | 2026-9 |
| 2018 | 21 | 千头 | 2026-9 |
| 2017 | 22 | 千头 | 2026-9 |
| 2016 | 24 | 千头 | 2026-9 |
| 2015 | 28 | 千头 | 2026-9 |
| 2014 | 33 | 千头 | 2026-9 |
| 2013 | 36 | 千头 | 2026-9 |
| 2012 | 35 | 千头 | 2026-9 |
| 2011 | 36 | 千头 | 2026-9 |
| 2010 | 41 | 千头 | 2026-9 |
| 2009 | 44 | 千头 | 2026-9 |
| 2008 | 55 | 千头 | 2026-9 |
| 2007 | 57 | 千头 | 2026-9 |
| 2006 | 58 | 千头 | 2026-9 |
| 2005 | 58 | 千头 | 2026-9 |
| 2004 | 56 | 千头 | 2026-9 |
| 2003 | 60 | 千头 | 2026-9 |
| 2002 | 63 | 千头 | 2026-9 |
| 2001 | 0 | 千头 | 2026-9 |
| 2000 | 0 | 千头 | 2026-9 |
| 1999 | 0 | 千头 | 2026-9 |
| 1998 | 0 | 千头 | 2026-9 |
| 1997 | 0 | 千头 | 2026-9 |
| 1996 | 0 | 千头 | 2026-9 |
| 1995 | 0 | 千头 | 2026-9 |
| 1994 | 0 | 千头 | 2026-9 |
| 1993 | 0 | 千头 | 2026-9 |
| 1992 | 0 | 千头 | 2026-9 |
| 1991 | 0 | 千头 | 2026-9 |
| 1990 | 0 | 千头 | 2026-9 |
| 1989 | 0 | 千头 | 2026-9 |
| 1988 | 0 | 千头 | 2026-9 |