日期	单位净值
2021-05-26	1.0136
2021-05-19	1.0083
2021-05-12	1.0036
2021-04-30	1.0082
2021-04-28	1.0087
2021-04-21	1.0077
2021-04-14	0.9972
2021-04-07	1.0024
2021-03-31	0.9985
2021-03-24	0.9894
2021-03-17	0.9972
2021-03-10	0.9884
2021-03-03	1.0024
2021-02-24	0.9954
2021-02-10	0.9994
2021-02-03	0.9996