condition	mean	min	max
4 h after light	6.66278	6.64627	6.67929
8 h after light	6.09895	5.38658	6.81132
12 h after light	4.922935	4.82796	5.01791
4 h after dark	6.04489	5.08231	7.52298
8 h after dark	6.72272	6.02967	7.18454
12 h after dark	6.615333333333334	5.26186	8.17646