condition	mean	min	max
4 h after light	15.5277425	10.477438	20.578047
8 h after light	13.704068	8.004266	19.40387
12 h after light	9.457796	8.246426	10.669166
4 h after dark	18.2374415	8.175347	28.299536
8 h after dark	20.631804	16.240661	25.022947
12 h after dark	23.650292	23.650292	23.650292