condition	mean	min	max
4 h after light	8.417696	7.033903	9.801489
8 h after light	8.8519915	8.573861	9.130122
12 h after light	7.858879	6.409913	9.307845
4 h after dark	7.230755500000001	7.183252	7.278259
8 h after dark	6.934593	6.567756	7.30143
12 h after dark	6.98129	6.98129	6.98129