condition	mean	min	max
4 h after light	15.7	15.7	15.7
8 h after light	39.8	32.0	47.6
12 h after light	18.85	8.5	29.2
4 h after dark	8.55	4.9	12.2
8 h after dark	5.95	4.5	7.4
12 h after dark	14.75	6.4	23.1