| 年份 | 单位:亿次 |
| 含“(E)”其对应值为系统预测,仅供参考。 | |
| 2025(E) | 购买后可见 » |
| 2024(E) | 购买后可见 » |
| 2023(E) | 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 | 购买后可见 » |
| 2013 | 购买后可见 » |
| 2012 | 3.76 |
| 2011 | 3.36 |
| 2010 | 3.03 |
| 2009 | 2.81 |
| 2008 | 2.57 |
| 2007 | 2.21 |
| 2006 | 2.14 |
| 2005 | 1.99 |
| 2004 | 1.90 |
| 2003 | 1.78 |
| 2002 | 1.70 |
| 2001 | 1.57 |
| 2000 | 1.54 |
| 1999 | 1.51 |
| 1998 | 1.57 |
| 1997 | 1.56 |
| 1996 | 1.58 |
| 1995 | 1.53 |
| 1994 | 1.53 |
| 1993 | 1.55 |
| 1992 | 1.74 |
| 1991 | 1.70 |
| 1990 | 1.55 |
| 1989 | 1.43 |
| 1988 | 1.41 |
| 1987 | 1.33 |
| 1986 | 0.99 |
| 1985 | 0.83 |
| 1984 | 0.80 |
| 1983 | 0.71 |
| 1982 | 0.65 |
| 1981 | 0.54 |
| 1980 | 0.46 |
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