日期	单位净值
2021-05-21	1.2803
2021-05-20	1.2793
2021-05-14	1.2805
2021-05-07	1.2797
2021-04-30	1.2818
2021-04-23	1.2859
2021-04-20	1.2910
2021-04-16	1.2882
2021-04-09	1.2923
2021-04-02	1.2963
2021-03-26	1.2848
2021-03-19	1.2833
2021-03-12	1.2874
2021-03-05	1.2847
2021-02-26	1.2760
2021-02-19	1.2919