condition	mean	min	max
4 h after light	4.206146666666667	4.1414800000000005	4.29115
8 h after light	4.197836666666666	4.0821	4.25778
12 h after light	4.164943333333333	4.14224	4.18216
4 h after dark	4.258	4.21699	4.28681
8 h after dark	4.1390899999999995	3.9935699999999996	4.214180000000001
12 h after dark	4.2279599999999995	4.200740000000001	4.2769699999999995