condition	mean	min	max
4 h after light	8.064210000000001	7.93716	8.129610000000001
8 h after light	7.101583333333333	6.88592	7.38461
12 h after light	7.308479999999999	7.223339999999999	7.411239999999999
4 h after dark	7.4890099999999995	7.46979	7.49932
8 h after dark	8.062086666666668	7.8155600000000005	8.196860000000001
12 h after dark	9.23807	9.04991	9.59954