日期	单位净值
2017-07-07	2.1500
2017-06-30	2.1801
2017-06-23	2.1791
2017-06-20	2.1731
2017-06-16	2.1577
2017-06-09	2.1599
2017-05-26	2.1072
2017-05-19	2.1815
2017-05-12	2.1767
2017-05-05	2.1987
2017-04-28	2.2077
2017-04-21	2.2169
2017-04-20	2.2657
2017-04-14	2.2399
2017-04-07	2.3037
2017-03-31	2.2690