| 序号 | 时间 (年) |
数据 (万户) |
|---|---|---|
| 1 | 2021 | |
| 2 | 2020 | |
| 3 | 2019 | |
| 4 | 2018 | |
| 5 | 2017 | |
| 6 | 2016 | |
| 7 | 2015 | |
| 8 | 2014 | |
| 9 | 2013 | |
| 10 | 2012 | |
| 11 | 2011 | 25.20 |
| 12 | 2010 | 24.73 |
| 13 | 2009 | 24.36 |
| 14 | 2008 | 24.13 |
| 15 | 2007 | 23.62 |
| 16 | 2006 | 23.53 |
| 17 | 2005 | 23.23 |
| 18 | 2004 | 23.09 |
| 19 | 2003 | 22.86 |
| 20 | 2002 | 22.66 |
| 21 | 2001 | 22.34 |
| 22 | 2000 | 21.71 |
| 23 | 1995 | 19.72 |
| 24 | 1990 | 17.48 |
| 25 | 1985 | 15.19 |
| 26 | 1980 | 13.98 |
| 27 | 1975 | 13.58 |
| 28 | 1970 | 12.26 |
| 29 | 1965 | 11.10 |
| 30 | 1957 | 10.31 |
