condition	mean	min	max
4 h after light	2.9	2.9	2.9
8 h after light	18.5	10.2	26.8
12 h after light	17.45	7.6	27.3
4 h after dark	5.1499999999999995	1.6	8.7
8 h after dark	18.9	18.6	19.2
12 h after dark	20.15	14.2	26.1