日期	单位净值
2021-05-20	1.2878
2021-05-14	1.2899
2021-05-07	1.2891
2021-04-30	1.2913
2021-04-23	1.2947
2021-04-20	1.2998
2021-04-16	1.2979
2021-04-09	1.3020
2021-04-02	1.3052
2021-03-26	1.2946
2021-03-19	1.2916
2021-03-12	1.2957
2021-03-05	1.2930
2021-02-26	1.2843
2021-02-19	1.3003
2021-02-10	1.2768