condition	mean	min	max
4 h after light	23.70099	15.89696	30.18305
8 h after light	7.777808666666667	6.055303	10.68562
12 h after light	9.111199666666666	8.120747	10.939969999999999
16 h after light	21.46514666666667	13.729629999999998	29.207690000000003
4 h after dark	64.78145	51.75943	77.24152
8 h after dark	33.65712666666667	32.5721	35.02884