日期	有票	均价	涨幅
2021-05-19	18430-18530	18480	-280
2021-05-18	18710-18810	18760	100
2021-05-17	18610-18710	18660	110
2021-05-14	18500-18600	18550	-180
2021-05-13	18680-18780	18730	-160
2021-05-12	18840-18940	18890	120
2021-05-11	18720-18820	18770	-120
2021-05-10	18840-18940	18890	310
2021-05-07	18530-18630	18580	550
2021-05-06	17980-18080	18030	300
2021-04-30	17680-17780	17730	80
2021-04-29	17600-17700	17650	320