condition	mean	min	max
4 h after light	15.72485	14.4186	17.0311
8 h after light	14.933800000000002	14.595	15.2726
12 h after light	13.77525	12.2392	15.3113
4 h after dark	27.09453333333333	24.6089	28.659
8 h after dark	29.7993	29.6652	30.0064
12 h after dark	25.188866666666666	24.2236	26.411