07/31/2015: $36,978
08/31/2015: $34,949
09/30/2015: $35,722
10/31/2015: $37,797
11/30/2015: $39,424
12/31/2015: $42,763
01/31/2016: $44,656
02/29/2016: $47,521
03/31/2016: $51,770
04/30/2016: $55,260
05/31/2016: $58,756
06/30/2016: $58,646
07/31/2016: $64,525
08/31/2016: $66,682
09/30/2016: $68,877
10/31/2016: $68,616
11/30/2016: $69,541
12/31/2016: $74,813