condition	mean	min	max
4 h after light	9.147136	9.138912	9.15536
8 h after light	8.46263	7.964991	8.960269
12 h after light	8.5674095	7.315653	9.819166
4 h after dark	8.4306375	8.16525	8.696025
8 h after dark	9.190503	8.05895	10.322056
12 h after dark	9.625233	9.625233	9.625233