日期	单位净值
2021-05-21	1.2871
2021-05-20	1.2861
2021-05-14	1.2873
2021-05-07	1.2865
2021-04-30	1.2886
2021-04-23	1.2928
2021-04-20	1.2979
2021-04-16	1.2950
2021-04-09	1.2992
2021-04-02	1.3033
2021-03-26	1.2917
2021-03-19	1.2891
2021-03-12	1.2932
2021-03-05	1.2904
2021-02-26	1.2817
2021-02-19	1.2977