日期	单位净值
2021-05-28	4.5989
2021-05-21	4.5111
2021-05-20	4.5318
2021-05-14	4.4208
2021-05-07	4.3582
2021-04-30	4.4369
2021-04-23	4.3334
2021-04-20	4.2889
2021-04-16	4.2556
2021-04-09	4.3217
2021-04-02	4.3336
2021-03-26	4.3264
2021-03-19	4.3802
2021-03-12	4.4965
2021-03-05	4.5208
2021-02-26	4.5275