日期	单位净值
2021-05-21	0.9989
2021-05-17	0.9986
2021-05-14	0.9948
2021-05-07	0.9903
2021-04-30	0.9954
2021-04-23	0.9930
2021-04-16	0.9859
2021-04-15	0.9856
2021-04-09	0.9860
2021-04-02	0.9896
2021-03-26	0.9841
2021-03-19	0.9820
2021-03-15	0.9813
2021-03-12	0.9855
2021-03-05	0.9873
2021-02-26	0.9895