I'd be curious to see similar math for republicans. It's probably a similar amount of time where they had full bully powers to do whatever they wanted, right? Maybe it's just me, but I'm fine if that kind of power from a single party is rare. If it happened more often we would get much more volatility as laws were changed back and forth. This way change happens more slowly, but it's generally objectively good change rather than reactionary or populist.