condition	mean	min	max
4 h after light	6.1277349999999995	5.70463	6.55084
8 h after light	7.54188	7.5308	7.55296
12 h after light	8.28281	7.72637	8.83925
4 h after dark	8.88381	8.19935	9.56827
8 h after dark	6.349845	6.28403	6.41566
12 h after dark	6.82741	6.81339	6.84143