日期	单位净值
2021-05-28	1.2829
2021-05-21	1.2735
2021-05-20	1.2726
2021-05-14	1.2737
2021-05-07	1.2729
2021-04-30	1.2750
2021-04-23	1.2791
2021-04-20	1.2840
2021-04-16	1.2812
2021-04-09	1.2853
2021-04-02	1.2884
2021-03-26	1.2780
2021-03-19	1.2764
2021-03-12	1.2805
2021-03-05	1.2778
2021-02-26	1.2692