condition	mean	min	max
4 h after light	5.4646	5.37067	5.53255
8 h after light	5.49016	5.38427	5.55877
12 h after light	5.474716666666667	5.28766	5.709309999999999
4 h after dark	5.421653333333333	5.37512	5.5102199999999995
8 h after dark	5.335453333333333	5.17619	5.458419999999999
12 h after dark	5.3936399999999995	5.27009	5.55054