condition	mean	min	max
4 h after light	5.87709	5.34454	6.40964
8 h after light	4.07344	3.34524	4.80164
12 h after light	4.442605	3.82177	5.06344
4 h after dark	6.3036	5.88201	6.56107
8 h after dark	6.020763333333333	3.74314	7.71034
12 h after dark	5.931493333333333	5.49012	6.59737