日期	有票	均价	涨幅
2021-12-30	20440-20540	20490	340
2021-12-29	20100-20200	20150	90
2021-12-28	20010-20110	20060	-70
2021-12-27	20080-20180	20130	-270
2021-12-24	20350-20450	20400	0
2021-12-23	20350-20450	20400	450
2021-12-22	19900-20000	19950	180
2021-12-21	19720-19820	19770	-180
2021-12-20	19900-20000	19950	170
2021-12-17	19730-19830	19780	370
2021-12-16	19360-19460	19410	40
2021-12-15	19320-19420	19370	-50