condition	mean	min	max
4 h after light	9.23884	9.16665	9.31103
8 h after light	5.69123	5.1367	6.24576
12 h after light	8.460005	7.64108	9.27893
4 h after dark	13.260866666666667	11.5044	14.5196
8 h after dark	14.1601	13.2212	15.3253
12 h after dark	10.792066666666667	10.2659	11.3708