日期	单位净值
2021-05-20	1.2815
2021-05-14	1.2836
2021-05-07	1.2828
2021-04-30	1.2840
2021-04-23	1.2881
2021-04-20	1.2932
2021-04-16	1.2903
2021-04-09	1.2954
2021-04-02	1.2986
2021-03-26	1.2880
2021-03-19	1.2844
2021-03-12	1.2886
2021-03-05	1.2858
2021-02-26	1.2772
2021-02-19	1.2931
2021-02-10	1.2697