日期	单位净值
2021-08-20	1.0247
2021-08-13	1.0288
2021-08-06	1.0319
2021-07-30	1.0229
2021-07-23	1.0238
2021-07-16	0.9989
2021-07-09	1.0173
2021-07-02	1.0071
2021-06-25	1.0111
2021-06-18	0.9860
2021-06-11	1.0128
2021-06-04	0.9830
2021-05-28	0.9873
2021-05-21	0.9748
2021-05-14	0.9749
2021-05-07	0.9735