01/31 - 141
02/28 - 137.2
03/31 - 138.0
04/30 - 137.2
05/31 - 139.2
06/30 - 138.6
07/31 - 138.0
08/31 - 137.0

09/01 - 137.2
09/02 - 136.6
09/03 - 136.2
09/04 - 136.4
09/05 - 136.4
09/06 - 136.0 New low!!
09/07 - 137.0
09/08 - 137.6
09/09 - 137.8
09/10 - 138.0
09/11 - 137.6
09/12 - 138.4 (fixed a typo)
09/13 - 138.6