condition	mean	min	max
4 h after light	8.863949999999999	8.73391	8.99399
8 h after light	6.8655	6.46144	7.26956
12 h after light	7.85928	7.52331	8.19525
4 h after dark	9.249805	9.04252	9.45709
8 h after dark	9.378499999999999	8.90571	9.85129
12 h after dark	10.7229	10.2515	11.1943