condition	mean	min	max
4 h after light	8.791205	8.63054	8.95187
8 h after light	10.26655	10.1995	10.3336
12 h after light	12.5545	11.9163	13.1927
4 h after dark	15.573149999999998	14.9843	16.162
8 h after dark	14.8782	14.2919	15.4645
12 h after dark	12.562899999999999	11.4863	13.6395