condition	mean	min	max
4 h after light	8.0	8.0	8.0
8 h after light	35.3	19.1	51.5
12 h after light	30.6	20.0	41.2
4 h after dark	13.85	8.2	19.5
8 h after dark	18.15	15.2	21.1
12 h after dark	34.15	28.4	39.9