condition	mean	min	max
4 h after light	5.018725	4.52635	5.5111
8 h after light	4.946875	4.66746	5.22629
12 h after light	6.703355	6.03069	7.37602
4 h after dark	7.822063333333333	7.65624	8.14016
8 h after dark	7.52049	6.64892	8.31299
12 h after dark	5.23677	4.67557	5.55475