日期	单位净值
2017-12-20	2.2502
2017-12-15	2.2556
2017-12-08	2.1893
2017-12-01	2.1872
2017-11-24	2.2144
2017-11-20	2.2087
2017-11-17	2.2388
2017-11-10	2.2898
2017-11-03	2.2047
2017-10-27	2.1908
2017-10-20	2.1202
2017-10-13	2.1373
2017-09-29	2.0675
2017-09-22	2.0536
2017-09-20	2.0496
2017-09-15	2.0315