日期	单位净值
2021-05-28	1.0452
2021-05-21	1.0461
2021-05-14	1.0458
2021-05-07	1.0435
2021-04-30	1.0426
2021-04-23	1.0415
2021-04-16	1.0392
2021-04-09	1.0373
2021-04-02	1.0363
2021-03-26	1.0351
2021-03-19	1.0335
2021-03-12	1.0280
2021-03-05	1.0272
2021-02-26	1.0256
2021-02-19	1.0244
2021-02-10	1.0230