condition	mean	min	max
4 h after light	15.93065	15.6981	16.1632
8 h after light	39.2822	38.5781	39.9863
12 h after light	60.52315	33.4347	87.6116
4 h after dark	17.57283333333333	15.7882	20.1142
8 h after dark	24.4806	23.4851	25.7146
12 h after dark	15.675833333333333	14.1717	18.1209