日期	单位净值
2021-05-21	1.2808
2021-05-20	1.2799
2021-05-14	1.2810
2021-05-07	1.2802
2021-04-30	1.2824
2021-04-23	1.2865
2021-04-20	1.2908
2021-04-16	1.2890
2021-04-09	1.2931
2021-04-02	1.2962
2021-03-26	1.2857
2021-03-19	1.2855
2021-03-12	1.2896
2021-03-05	1.2858
2021-02-26	1.2782
2021-02-19	1.2941