原始数据是这样的
- [/size]
- [size=14px]* Example generated by -dataex-. To install: ssc install dataex[/size]
- [size=14px]clear[/size]
- [size=14px]input str10 date[/size]
- [size=14px]"2016/12/31"[/size]
- [size=14px]"2017/12/31"[/size]
- [size=14px]"2009/12/31"[/size]
- [size=14px]"2010/12/31"[/size]
- [size=14px]"2011/12/31"[/size]
- [size=14px]"2012/12/31"[/size]
- [size=14px]"2013/12/31"[/size]
- [size=14px]"2014/12/31"[/size]
- [size=14px]"2015/12/31"[/size]
- [size=14px]"2016/12/31"[/size]
- [size=14px]end[/size]
- [size=14px]