A lot of the sells were really 1 sell. If you add up some of them up and the timestamps they were selling 1m, 500k, etc...they were just broken up since they were limit orders. When I sell, I watch and see how my order gets broken up in to sometimes 3, 4, 5 or more sells.
At the end of the day it looked like someone was selling at market so it just kept taking out the bid support at 0068, 0067, 0065 and so on until they were done.