condition	mean	min	max
0 h after light	9.98834	8.46878	11.5079
4 h after light	15.0909	12.9863	17.1955
8 h after light	15.2819	14.5173	16.0465
4 h after dark	18.3199	17.2936	19.3462
8 h after dark	13.7253	13.5433	13.9073
12 h after dark	10.429535	9.96467	10.8944