condition	mean	min	max
4 h after light	3.6585	3.47717	3.83983
8 h after light	3.34229	3.25641	3.42817
12 h after light	4.52929	4.28148	4.7771
4 h after dark	7.4306350000000005	6.60716	8.25411
8 h after dark	6.099270000000001	5.77637	6.42217
12 h after dark	6.2735199999999995	6.17199	6.37505