condition	mean	min	max
4 h after light	6.005953333333333	5.60579	6.22233
8 h after light	5.76601	5.56605	5.911969999999999
12 h after light	5.652293333333334	5.32105	5.85646
4 h after dark	5.4532099999999994	5.09896	5.76385
8 h after dark	5.639763333333333	5.4141699999999995	5.83922
12 h after dark	5.85795	5.59443	6.02595