condition	mean	min	max
4 h after light	5.92196	5.58951	6.25441
8 h after light	5.87287	5.83965	5.90609
12 h after light	5.885925	5.75568	6.01617
4 h after dark	9.011436666666667	8.27173	9.83788
8 h after dark	7.461	7.13352	7.70692
12 h after dark	6.42393	5.43461	7.43729