日期	单位净值
2021-05-21	1.0464
2021-05-14	1.0461
2021-05-07	1.0438
2021-04-30	1.0429
2021-04-23	1.0418
2021-04-16	1.0395
2021-04-09	1.0376
2021-04-02	1.0365
2021-03-26	1.0353
2021-03-19	1.0338
2021-03-12	1.0283
2021-03-05	1.0274
2021-02-26	1.0259
2021-02-19	1.0247
2021-02-10	1.0233
2021-02-05	1.0222