condition	mean	min	max
4 h after light	8.863294	8.222982	9.503606
8 h after light	8.004126	7.827351	8.180901
12 h after light	7.995777500000001	7.723956	8.267599
4 h after dark	8.4403925	8.244485	8.6363
8 h after dark	7.5736574999999995	6.90283	8.244485
12 h after dark	9.427749	9.427749	9.427749