condition	mean	min	max
4 h after light	19.1	19.1	19.1
8 h after light	29.6	29.4	29.8
12 h after light	32.1	16.3	47.9
4 h after dark	40.75	26.9	54.6
8 h after dark	69.45	48.2	90.7
12 h after dark	36.05	32.4	39.7