Just to add a simple chart i got my hands on you provided great info thanks alot
π - 94% June-November 2011 from $32 to $2
π - 36% June 2012 from $7 to $4
π - 79% April 2013 from $266 to $54
π - 87% from $1166 to $170 Nov 2013 to Jan 2015
π - 49% Feb 2014
π - 40% Sept 2017 from $5k to $2972
π - 55% Jan 2018 from $19000 to 8500
I think last drop was from 20k$ to 5,9k$ in only like 14 days longer frame.