condition	mean	min	max
4 h after light	20.7	20.7	20.7
8 h after light	47.55	17.4	77.7
12 h after light	20.4	19.9	20.9
4 h after dark	69.15	49.6	88.7
8 h after dark	52.3	25.6	79.0
12 h after dark	36.65	21.2	52.1