condition	mean	min	max
4 h after light	2.47301	0.0	4.94602
8 h after light	5.4088	0.0	10.8176
12 h after light	4.932335	0.0	9.86467
4 h after dark	12.995625	8.74685	17.2444
8 h after dark	12.886375000000001	8.64165	17.1311
12 h after dark	7.163	0.0	14.326