condition	mean	min	max
4 h after light	18.5	18.5	18.5
8 h after light	39.5	6.4	72.6
12 h after light	42.6	18.2	67.0
4 h after dark	20.5	20.0	21.0
8 h after dark	17.45	15.0	19.9
12 h after dark	25.35	17.6	33.1