condition	mean	min	max
4 h after light	75.56555	73.6701	77.461
8 h after light	64.0004	63.9342	64.0666
12 h after light	66.38445	63.7679	69.001
4 h after dark	82.75143333333334	77.3784	86.9291
8 h after dark	91.548	89.7447	93.6347
12 h after dark	89.13166666666667	86.5768	91.467