I just add another overlapping indicator of default setting - and I excluded the data before 1998 because it distort the band due to the inherent nature of the scale
By simply joinning top to top, bottom to bottom...
from the 2009 bottom, has transited twice and getting steeper.
If the uptrend resistance line holds true...that means we are indeed going to see yet another high most probably around the highlighted junction.
17534 by end of Oct?