condition	mean	min	max
4 h after light	10.8591215	9.650615	12.067628
8 h after light	18.960619	15.745657	22.175581
12 h after light	16.728241	13.551241	19.905241
4 h after dark	19.991850499999998	16.651592	23.332109
8 h after dark	14.001233	11.663089	16.339377
12 h after dark	15.264876	15.264876	15.264876