condition	mean	min	max
4 h after light	15.6232665	13.876403	17.37013
8 h after light	12.8960005	12.560019	13.231982
12 h after light	14.054621000000001	12.622165	15.487077
4 h after dark	11.6906325	10.728183	12.653082
8 h after dark	13.055499000000001	11.986923	14.124075
12 h after dark	13.517797	13.517797	13.517797