 It's only the kids that stay in these programs. So 25 to 30% of kids exit voucher systems every year, something we've seen repeatedly over the last 15 years. So it's not that difficult from a school's perspective to cultivate the culture and climate it wants to when it can exit out anyone that it sees not conforming to that culture and climate. And this is why you see data that seem favorable on school culture and climate for the private schools. It's not particularly surprising.