condition	mean	min	max
4 h after light	14.2	14.2	14.2
8 h after light	24.0	1.8	46.2
12 h after light	17.35	10.4	24.3
4 h after dark	16.15	7.5	24.8
8 h after dark	18.3	10.0	26.6
12 h after dark	12.75	7.6	17.9