condition	mean	min	max
4 h after light	2.35184	2.00691	2.69677
8 h after light	4.78807	3.84071	5.73543
12 h after light	3.770305	3.66916	3.87145
4 h after dark	4.376815	3.13414	5.61949
8 h after dark	2.365485	1.95502	2.77595
12 h after dark	2.83675	2.72483	2.94867