condition	mean	min	max
4 h after light	71.19944444333333	52.82	87.295
8 h after light	66.00055555666667	61.41	74.035
12 h after light	51.63888889	48.91	53.91666667
1.5 h after dark	46.12111111	41.48	49.91
5.5 h after dark	48.49111111	44.36	52.24
9.5 h after dark	57.15111111333333	51.58666667	64.07666667