condition	mean	min	max
4 h after light	81.6	81.6	81.6
8 h after light	41.35	15.3	67.4
12 h after light	33.15	31.7	34.6
4 h after dark	69.75	47.9	91.6
8 h after dark	56.45	30.5	82.4
12 h after dark	19.9	6.8	33.0