condition	mean	min	max
4 h after light	7.210255999999999	6.951485	7.469027
8 h after light	7.3275555	6.948411	7.7067
12 h after light	7.3905135	6.874332	7.906695
4 h after dark	7.909039999999999	7.777119	8.040961
8 h after dark	8.1031765	7.894128	8.312225
12 h after dark	7.721559	7.721559	7.721559