condition	mean	min	max
4 h after light	7.363765	5.62186	9.10567
8 h after light	7.31229	7.04952	7.57506
12 h after light	10.29899	9.31048	11.2875
4 h after dark	17.38185	14.0254	20.7383
8 h after dark	12.596	12.3438	12.8482
12 h after dark	10.25987	9.32484	11.1949