condition	mean	min	max
4 h after light	4.0	4.0	4.0
8 h after light	23.0	22.0	24.0
12 h after light	26.05	21.5	30.6
4 h after dark	17.7	9.2	26.2
8 h after dark	31.45	24.4	38.5
12 h after dark	4.55	4.1	5.0