condition	mean	min	max
4 h after light	15.829150000000002	13.7246	17.9337
8 h after light	4.482195	3.51688	5.44751
12 h after light	6.57072	6.30518	6.83626
4 h after dark	9.941516666666667	9.91528	9.96809
8 h after dark	26.323	23.9691	28.8233
12 h after dark	27.0967	26.2868	28.1227