condition	mean	min	max
4 h after light	9.7	9.7	9.7
8 h after light	18.85	16.6	21.1
12 h after light	21.5	17.0	26.0
4 h after dark	25.9	23.4	28.4
8 h after dark	16.25	9.6	22.9
12 h after dark	25.15	23.6	26.7