condition	mean	min	max
4 h after light	15.4	15.4	15.4
8 h after light	14.8	3.1	26.5
12 h after light	48.4	46.4	50.4
4 h after dark	25.55	22.5	28.6
8 h after dark	66.1	54.7	77.5
12 h after dark	53.15	37.5	68.8