日期	单位净值
2021-05-21	1.0462
2021-05-14	1.0219
2021-05-07	1.0217
2021-04-30	1.0484
2021-04-23	1.0307
2021-04-16	1.0006
2021-04-09	0.9985
2021-04-02	1.0169
2021-03-26	0.9984
2021-03-19	0.9976
2021-03-12	1.0179