日期	单位净值
2021-05-21	4.5380
2021-05-20	4.5701
2021-05-14	4.4656
2021-05-07	4.3999
2021-04-30	4.4150
2021-04-23	4.4814
2021-04-20	4.4494
2021-04-16	4.3213
2021-04-09	4.3631
2021-04-02	4.4417
2021-03-26	4.3822
2021-03-19	4.3528
2021-03-12	4.5010
2021-03-05	4.7382
2021-02-26	4.8846
2021-02-20	5.1598