condition	mean	min	max
4 h after light	18.9	18.9	18.9
8 h after light	50.5	23.4	77.6
12 h after light	49.5	40.2	58.8
4 h after dark	63.25	62.2	64.3
8 h after dark	72.7	61.5	83.9
12 h after dark	34.85	17.5	52.2