日期	单位净值
2021-05-21	1.2830
2021-05-20	1.2820
2021-05-14	1.2841
2021-05-07	1.2833
2021-04-30	1.2845
2021-04-23	1.2886
2021-04-20	1.2936
2021-04-16	1.2917
2021-04-09	1.2958
2021-04-02	1.2989
2021-03-26	1.2884
2021-03-19	1.2868
2021-03-12	1.2909
2021-03-05	1.2872
2021-02-26	1.2785
2021-02-19	1.2944