condition	mean	min	max
4 h after light	6.10637	5.66971	6.54303
8 h after light	8.891195	8.68788	9.09451
12 h after light	8.209105	7.43964	8.97857
4 h after dark	5.690645	5.64981	5.73148
8 h after dark	4.00247	3.91829	4.08665
12 h after dark	4.213925	3.85233	4.57552