日期	单位净值
2021-05-21	1.2870
2021-05-20	1.2860
2021-05-14	1.2882
2021-05-07	1.2874
2021-04-30	1.2895
2021-04-23	1.2936
2021-04-20	1.2986
2021-04-16	1.2958
2021-04-09	1.2999
2021-04-02	1.3030
2021-03-26	1.2924
2021-03-19	1.2922
2021-03-12	1.2964
2021-03-05	1.2926
2021-02-26	1.2850
2021-02-19	1.3009