condition	mean	min	max
4 h after light	8.106975	6.62576	9.58819
8 h after light	8.021045	6.38114	9.66095
12 h after light	9.72073	8.09026	11.3512
4 h after dark	11.4011	10.2152	12.587
8 h after dark	8.932155	7.27241	10.5919
12 h after dark	9.035185	8.47471	9.59566