condition	mean	min	max
4 h after light	4.0	4.0	4.0
8 h after light	41.95	39.1	44.8
12 h after light	37.85	26.5	49.2
4 h after dark	29.15	13.4	44.9
8 h after dark	61.35	50.8	71.9
12 h after dark	54.05	52.3	55.8