condition	mean	min	max
4 h after light	4.465885	3.98472	4.94705
8 h after light	5.175975	5.10092	5.25103
12 h after light	5.856465	5.79368	5.91925
4 h after dark	8.28181	7.3956	9.57932
8 h after dark	5.99666	5.35827	7.12332
12 h after dark	5.661906666666667	5.00327	6.2636