condition	mean	min	max
4 h after light	73.20675	71.9302	74.4833
8 h after light	57.71585	54.4915	60.9402
12 h after light	64.2938	63.5565	65.0311
4 h after dark	87.9163	82.8245	93.0081
8 h after dark	95.82855	95.7367	95.9204
12 h after dark	93.6955	92.8471	94.5439