The scores themselves does not really mean anything, they are always contextual. That is why you can see your organizations max, minimum and average scores.
What can be said is that the closer to 100, the more your team feels that you are doing the right things in the right way. At the moment. Remember that a team’s needs change over time and that there are no “right leadership” that will always work in all teams all the time. Your leadership needs to change and evolve together with the team to be effective and functional. One single score will never tell the full story, but it will tell you what you are doing that helps the team, and what you need to de more or less of to help the team develop.
We would rather think that a “good trend” is much more valuable than one single good score. But for a single review, scores over 80 will be treated as “strengths” by the system - so that is one way of answering this question. That does not mean, however, that you can’t change anything in relation to that specific competency. But it means (in most cases) that there are probably more to gain for you, your team and your organization by a change in another area.