condition	mean	min	max
4 h after light	7.0221	6.41095	7.63325
8 h after light	8.434035	8.43071	8.43736
12 h after light	6.200615	5.7458	6.65543
4 h after dark	7.621365	7.41484	7.82789
8 h after dark	7.843435	7.23114	8.45573
12 h after dark	7.7960449999999994	7.65879	7.9333