日期	单位净值
2021-05-21	1.0463
2021-05-14	1.0460
2021-05-07	1.0437
2021-04-30	1.0428
2021-04-23	1.0417
2021-04-16	1.0394
2021-04-09	1.0375
2021-04-02	1.0365
2021-03-26	1.0352
2021-03-19	1.0337
2021-03-12	1.0282
2021-03-05	1.0273
2021-02-26	1.0258
2021-02-19	1.0246
2021-02-10	1.0232
2021-02-05	1.0221