condition	mean	min	max
4 h after light	5.183486666666667	5.0347800000000005	5.40549
8 h after light	5.15217	5.08021	5.26954
12 h after light	5.1219	5.016780000000001	5.29012
4 h after dark	5.127436666666667	5.07236	5.23022
8 h after dark	5.146446666666667	5.112480000000001	5.18237
12 h after dark	5.06738	4.968459999999999	5.12116