BHP Billiton ; Finished correction or another leg lower

In my opinion this stock finished 5 waves up in 2011 and has been in a correction ever since. The question is whether that correction finished in 2016 or if there is another leg lower to run. Any suggestions for either would be welcomed. If I had to stick my neck out I would go with my blue count.......but then again.....I can't really make up my mind.