condition	mean	min	max
4 h after light	14.407833333333333	7.6293	19.8912
8 h after light	11.55237	2.60971	20.895
12 h after light	13.735573333333333	6.72542	22.7805
4 h after dark	20.2671	12.6034	26.7636
8 h after dark	17.777533333333334	12.0116	21.5375
12 h after dark	16.5696	13.5796	20.809