日期	单位净值
2021-05-21	1.2858
2021-05-20	1.2848
2021-05-14	1.2860
2021-05-07	1.2852
2021-04-30	1.2873
2021-04-23	1.2915
2021-04-20	1.2965
2021-04-16	1.2937
2021-04-09	1.2978
2021-04-02	1.3010
2021-03-26	1.2903
2021-03-19	1.2891
2021-03-12	1.2932
2021-03-05	1.2905
2021-02-26	1.2818
2021-02-19	1.2977