condition	mean	min	max
4 h after light	3.5	3.5	3.5
8 h after light	4.9	4.3	5.5
12 h after light	10.25	4.8	15.7
4 h after dark	21.3	19.0	23.6
8 h after dark	6.25	4.7	7.8
12 h after dark	26.099999999999998	19.9	32.3