condition	mean	min	max
4 h after light	6.8083100000000005	5.16345	8.45317
8 h after light	16.964199999999998	16.1966	17.7318
12 h after light	20.44685	17.338	23.5557
4 h after dark	19.60035	17.0438	22.1569
8 h after dark	11.66095	10.981	12.3409
12 h after dark	11.014800000000001	10.2883	11.7413