condition	mean	min	max
4 h after light	7.9035115000000005	7.803878	8.003145
8 h after light	7.580947999999999	7.490009	7.671887
12 h after light	7.9591515	7.40274	8.515563
4 h after dark	6.9714995	6.897306	7.045693
8 h after dark	8.3545325	8.099234	8.609831
12 h after dark	8.17985	8.17985	8.17985