condition	mean	min	max
4 h after light	18.8	18.8	18.8
8 h after light	49.4	48.9	49.9
12 h after light	30.55	28.9	32.2
4 h after dark	49.05	32.4	65.7
8 h after dark	31.75	27.2	36.3
12 h after dark	70.6	48.9	92.3