Stacked graphs are really hard to parse. You have all of these lines going up and down even when no upward or downward trend is present. It would probably be be

Stacked graphs are really hard to parse. You have all of these lines going up and down even when no upward or downward trend is present. It would probably be better to just create 10 small barcharts (one for each reason) and then put those underneath each other.