condition	mean	min	max
4 h after light	39.5	39.5	39.5
8 h after light	65.45	48.7	82.2
12 h after light	51.55	44.2	58.9
4 h after dark	67.0	53.9	80.1
8 h after dark	52.7	36.7	68.7
12 h after dark	44.4	36.5	52.3