| 序号 | 时间 (年) |
数据 (万张) |
|---|---|---|
| 1 | 2020 | |
| 2 | 2019 | |
| 3 | 2018 | |
| 4 | 2017 | |
| 5 | 2016 | |
| 6 | 2015 | |
| 7 | 2014 | 4.35 |
| 8 | 2013 | 4.43 |
| 9 | 2012 | 4.54 |
| 10 | 2011 | 4.71 |
| 11 | 2010 | 4.76 |
| 12 | 2009 | 4.28 |
| 13 | 2008 | 3.54 |
| 14 | 2007 | 2.81 |
| 15 | 2006 | 2.86 |
| 16 | 2000 | 3.46 |
| 17 | 1995 | 0.85 |
| 18 | 1990 | 0.72 |
| 19 | 1985 | 0.57 |
| 20 | 1980 | 0.26 |
| 21 | 1978 | 0.21 |
| 22 | 1975 | 0.24 |
| 23 | 1970 | 0.05 |
| 24 | 1965 | 0.36 |
| 25 | 1962 | 0.38 |
| 26 | 1957 | 0.48 |
| 27 | 1952 | 0.21 |
