It's hard for me to give you an exact number because I don't have the same status as everyone else.
However, I can tell you that the in‑house practice was to recuse yourself. We had a productive discussion about this on the board, and the minutes recording the discussion between us and our legal adviser, an experienced lawyer who guided us in our decision-making, were very well written.
I would remind you that I'm an engineer and a finance expert. My role on the board was to review technical and financial aspects, and I followed the opinion provided, as did the others.