日期	单位净值
2021-05-31	1.0290
2021-05-28	1.0278
2021-05-21	1.0274
2021-05-20	1.0345
2021-05-14	1.0349
2021-05-07	1.0357
2021-04-30	1.0266
2021-04-23	1.0276
2021-04-20	1.0239
2021-04-16	1.0263
2021-04-09	1.0198
2021-04-02	1.0165
2021-03-26	1.0073
2021-03-19	1.0046
2021-03-12	1.0063
2021-03-05	1.0058