condition	mean	min	max
4 h after light	4.722135	3.84039	5.60388
8 h after light	1.651345	1.46423	1.83846
12 h after light	1.54189	1.45298	1.6308
4 h after dark	1.772545	1.56304	1.98205
8 h after dark	1.3900549999999998	1.16458	1.61553
12 h after dark	4.19777	4.05787	4.33767