CCL 20160219 - slope of retracements

Assuming that the trend is up since year 2003, when the slope of retracements is getting flatter & flatter, the trend could be reversed until there is a retracement with relative stiff(-est) slope.

For easier comparison, coloured bars represent different slopes from different time. It is obvious that the latest retracement (in red) is the stiffest among the 4 retracements.