condition	mean	min	max
4 h after light	4.6	4.6	4.6
8 h after light	29.6	15.3	43.9
12 h after light	10.85	5.7	16.0
4 h after dark	70.5	60.8	80.2
8 h after dark	43.7	19.9	67.5
12 h after dark	19.0	11.9	26.1