condition	mean	min	max
4 h after light	18.035615999999997	17.827627	18.243605
8 h after light	20.0773865	17.458104	22.696669
12 h after light	16.6555575	13.445997	19.865118
4 h after dark	18.945718	17.243297	20.648139
8 h after dark	17.8151675	16.650468	18.979867
12 h after dark	17.140592	17.140592	17.140592