condition	mean	min	max
4 h after light	5.573043333333334	2.11863	7.30861
8 h after light	6.89766	4.13072	11.054
12 h after light	8.84578	3.81251	13.1892
4 h after dark	17.146366666666665	13.8659	19.7779
8 h after dark	8.69819	4.96852	12.8191
12 h after dark	16.225966666666668	16.1153	16.394