condition	mean	min	max
4 h after light	6.167596666666666	6.08699	6.30768
8 h after light	6.012746666666667	5.79973	6.2428099999999995
12 h after light	5.98236	5.83139	6.16475
4 h after dark	6.254736666666666	6.1272199999999994	6.46014
8 h after dark	6.05804	5.72982	6.22985
12 h after dark	6.091266666666666	5.8554699999999995	6.2441699999999996