condition	mean	min	max
4 h after light	63.196111110000004	57.925	70.95333333
8 h after light	50.59	45.28	55.14
12 h after light	50.465555556666665	46.15	57.60666667
1.5 h after dark	57.21111111	49.04333333	68.97
5.5 h after dark	66.90222222	50.34333333	86.13333333
9.5 h after dark	70.49222222333333	54.39	101.74