condition	mean	min	max
4 h after light	8.3587495	7.890055	8.827444
8 h after light	8.4432455	8.188564	8.697927
12 h after light	7.698408	7.439372	7.957444
4 h after dark	8.723416499999999	8.595835	8.850998
8 h after dark	8.538023500000001	7.890055	9.185992
12 h after dark	7.641463	7.641463	7.641463