condition	mean	min	max
4 h after light	7.8415680000000005	7.722963	7.960173
8 h after light	7.531316	7.176683	7.885949
12 h after light	8.119955000000001	7.849682	8.390228
4 h after dark	7.801445	7.773231	7.829659
8 h after dark	8.418865	7.960173	8.877557
12 h after dark	6.759453	6.759453	6.759453