condition	mean	min	max
4 h after light	5.924675000000001	5.04145	6.8079
8 h after light	5.66447	5.38991	5.93903
12 h after light	6.243595	5.52374	6.96345
4 h after dark	7.86109	7.20274	8.51944
8 h after dark	6.729155	6.59882	6.85949
12 h after dark	7.59211	7.11705	8.06717