condition	mean	min	max
4 h after light	6.04606	5.97732	6.1148
8 h after light	4.006035	3.74458	4.26749
12 h after light	4.25851	3.81429	4.70273
4 h after dark	6.062885	5.78997	6.3358
8 h after dark	5.931075	5.72198	6.14017
12 h after dark	6.6773050000000005	6.1988	7.15581