Yes. So Net Promoter Score, for those who aren't familiar, it's the question, on a scale of 0 to 10, how likely is that you'll refer a friend or colleague join eXp Realty? And so that's the basic question. And from there, you get a score. And from that score, we're able to then make decisions as a team to help improve that score. And so when we think about agent experience, whether it be on transactions, onboarding, just overall eXp, we measure multiple places along the agent life cycle. And what it does, quite frankly, is it allows us to work as a team rather than having just to mandate, here's our priorities from sort of a corporate top-down perspective. And so by using the Net Promoter, that allows any team to work on a part of the business to -- on improving those scores.
So we're -- we've got good scores now, got some of the best scores we've ever had in the history of eXp. And one thing that we noted back in around 2016, 2017 is if our scores were around 60, then we weren't growing that fast. And when our scores were above 70, we actually were growing faster and we retained a lot more of our agents. So we've really used 70 as sort of the number that we don't want to dip below in any category of the business because we know that below 70, at least for us -- I don't want to say bad things start to happen, but we start to see some pain points where agents might leave us that we'll sit there and go, "Man, we should have solved that particular challenge."
So for us, just using that basic score and then asking the second question, which is, "What influenced you to give us that score?" And if obviously they gave us a 9 or 10, they're going to tell us all the things we did right. But if they give us a 7 or 8 or a 6 or below, they'll tell us things that we can improve. And if we see enough of that data show up in our scores, meaning that, "I didn't get a phone call back," or "I can't reach my broker," or you see these different themes show up, then it allows our team to go and actually work on solving real issues that make real impact to our agents. And I know Jeff's all over NPS and works with the team really closely on it, and I think it's probably the #1 metric other than making sure we're -- we've got a sustainable model.