日期	单位净值
2021-05-28	1.0553
2021-05-21	1.0469
2021-05-20	1.0462
2021-05-14	1.0479
2021-05-07	1.0472
2021-04-30	1.0482
2021-04-23	1.0514
2021-04-20	1.0554
2021-04-16	1.0540
2021-04-09	1.0572
2021-04-02	1.0597
2021-03-26	1.0505
2021-03-19	1.0502
2021-03-12	1.0534
2021-03-05	1.0512
2021-02-26	1.0444