condition	mean	min	max
4 h after light	18.870754	15.591339	22.150169
8 h after light	21.968351	19.354276	24.582426
12 h after light	25.36212	20.288695	30.435545
4 h after dark	20.9809785	18.892891	23.069066
8 h after dark	17.567204	14.799333	20.335075
12 h after dark	18.980069	18.980069	18.980069