It's quite clear visually that when you look at the December peak in 2013 and subsequent bear market into 2015, it looks remarkably similar to what has been happening since December 2017.
So how about the recovery?
If we put Fibonacci retracements on both we can see them line up well with various lows/highs (resistance). So, after similarly breaking the Yearly average and pushing through the 23.6% retrace, will we see a re-test before the push on higher?