日期	单位净值
2021-05-21	1.2780
2021-05-20	1.2770
2021-05-14	1.2791
2021-05-07	1.2783
2021-04-30	1.2795
2021-04-23	1.2836
2021-04-20	1.2885
2021-04-16	1.2867
2021-04-09	1.2908
2021-04-02	1.2939
2021-03-26	1.2834
2021-03-19	1.2822
2021-03-12	1.2864
2021-03-05	1.2826
2021-02-26	1.2740
2021-02-19	1.2898