日期	有票	均价	涨幅
2021-01-15	14920-14960	14940	210
2021-01-14	14710-14750	14730	-120
2021-01-13	14830-14870	14850	-210
2021-01-12	15040-15080	15060	-340
2021-01-11	15380-15420	15400	-300
2021-01-08	15680-15720	15700	140
2021-01-07	15540-15580	15560	-120
2021-01-06	15660-15700	15680	-10
2021-01-05	15670-15710	15690	100
2021-01-04	15570-15610	15590	-120
2020-12-31	15690-15730	15710	-60
2020-12-30	15750-15790	15770	-90