日期	单位净值
2021-05-21	1.0400
2021-05-14	1.0385
2021-05-07	1.0365
2021-04-30	1.0352
2021-04-23	1.0343
2021-04-16	1.0326
2021-04-09	1.0310
2021-04-02	1.0298
2021-03-26	1.0286
2021-03-19	1.0270
2021-03-12	1.0228
2021-03-05	1.0215
2021-02-26	1.0199
2021-02-19	1.0183
2021-02-10	1.0167
2021-02-05	1.0159