condition	mean	min	max
4 h after light	4.345126666666666	4.20936	4.53316
8 h after light	4.47112	4.3086	4.67519
12 h after light	4.491216666666666	4.37071	4.71111
4 h after dark	4.49028	4.2949	4.8102
8 h after dark	4.39625	4.32451	4.53525
12 h after dark	4.406	4.21283	4.6795