Really surprising numbers, and an interesting contrast to the NBA, where teams that have owned the 3 point line have become increasingly dominant in the last 5 years. It makes me wonder of there's a point of diminishing returns on 3 point attempts, where taking a certain amount is more a sign of desperation and limited options, as opposed to any kind of strategy.
NBA teams this year are taking about 28% of their total shots from 3 point range- the highest number ever, and a huge increase from even 10 years ago, when it was barely over 20%. In college basketball, OTOH, because of the closer line, teams have been taking over 30% of their FG attempts from 3 point range every single year that you listed, without any significant variation in the ratio. Yet, of the last 14 National Champs, none have been in the top 1/3rd of team 3 point attempts, and 8 have been in the bottom third. You have no college equivalent of Golden State, or the Spurs from 2014, no great team that was capable of bombing an opponent out of the building on a consistent basis.
And a sidenote on that, given UK's (particularly Ulis's) 3 point shooting Saturday: Does anyone else ever wonder of college shooters would actually be better (purposely) backing off the college 3 point line by a foot or 2? I do. Overall NBA 3 point shooting % is 35%, which is better than in college basketball. I know the NBA is the best of the best, but there are A LOT of cases where guys who had mediocre or bad 3 point %'s in college suddenly get better in the NBA, from further out. I think a chunk of that is because you see so many NBA 3's where a guy has both feet set, shoulders squared, before the ball ever gets in the air. Without being tremendously rushed, because it's one step farther for a defender to get out on him than it is in college.
Which is what Ulis had Saturday, because he backed 3-5 feet away from the line.