condition	mean	min	max
4 h after light	71.2289895	70.8467	71.611279
8 h after light	66.5183355	65.201007	67.835664
12 h after light	64.111189	56.771672	71.450706
4 h after dark	69.8944305	63.759704	76.029157
8 h after dark	74.707899	72.350696	77.065102
12 h after dark	66.395806	66.395806	66.395806