condition	mean	min	max
4 h after light	8.991865	8.57825	9.40548
8 h after light	6.9757750000000005	6.9296	7.02195
12 h after light	9.419705	8.95228	9.88713
4 h after dark	8.97385	8.36654	9.58116
8 h after dark	10.8594	10.638	11.0808
12 h after dark	11.06705	10.8813	11.2528