condition	mean	min	max
4 h after light	1.96197	1.53524	2.3887
8 h after light	1.30442	1.16559	1.44325
12 h after light	1.70253	1.17572	2.22934
4 h after dark	5.18058	3.85817	6.50299
8 h after dark	3.378065	3.14118	3.61495
12 h after dark	2.75329	2.74998	2.7566