condition	mean	min	max
4 h after light	66.2	66.2	66.2
8 h after light	55.05	54.6	55.5
12 h after light	69.05	52.1	86.0
4 h after dark	52.8	20.0	85.6
8 h after dark	37.3	21.7	52.9
12 h after dark	15.4	12.2	18.6