condition	mean	min	max
4 h after light	13.2683	12.7182	13.8184
8 h after light	12.3277	11.588	13.0674
12 h after light	13.8683	13.1367	14.5999
4 h after dark	18.5257	18.271	18.7804
8 h after dark	16.09385	15.2386	16.9491
12 h after dark	15.7956	15.0321	16.5591