condition	mean	min	max
4 h after light	6.3	6.3	6.3
8 h after light	9.4	6.3	12.5
12 h after light	28.65	12.0	45.3
4 h after dark	59.0	39.3	78.7
8 h after dark	18.15	5.5	30.8
12 h after dark	52.55	48.5	56.6