condition	mean	min	max
4 h after light	2.9870799999999997	2.60881	3.36535
8 h after light	5.53204	4.99309	6.07099
12 h after light	21.3747	20.0011	22.7483
4 h after dark	27.52115	26.0136	29.0287
8 h after dark	18.708599999999997	17.3755	20.0417
12 h after dark	9.2395	8.75024	9.72876