condition	mean	min	max
4 h after light	9.234995	7.38019	11.0898
8 h after light	6.058625	5.62333	6.49392
12 h after light	6.474825	5.64663	7.30302
4 h after dark	11.8979	10.401	13.3948
8 h after dark	9.485225	9.16689	9.80356
12 h after dark	10.279585	9.69237	10.8668