condition	mean	min	max
4 h after light	60.32611111	47.68333333	76.32
8 h after light	49.448888886666666	42.55	61.24333333
12 h after light	31.72	23.73666667	41.78333333
1.5 h after dark	37.96888889	33.85	45.36
5.5 h after dark	56.089999999999996	55.46	57.12
9.5 h after dark	63.879999999999995	56.12666667	70.10333333