condition	mean	min	max
4 h after light	7.47695	0.0	14.9539
8 h after light	0.0	0.0	0.0
12 h after light	4.932335	0.0	9.86467
4 h after dark	12.995625	8.74685	17.2444
8 h after dark	8.62264	4.28278	12.9625
12 h after dark	9.626090000000001	8.50768	10.7445