condition	mean	min	max
4 h after light	4.599876666666667	4.46641	4.8051
8 h after light	4.49103	4.322690000000001	4.65448
12 h after light	4.58432	4.42957	4.81074
4 h after dark	4.560713333333333	4.491280000000001	4.62487
8 h after dark	4.5834866666666665	4.44405	4.73842
12 h after dark	4.698553333333333	4.57937	4.839119999999999