condition	mean	min	max
4 h after light	7.21813	5.69878	8.73748
8 h after light	6.268745	5.21204	7.32545
12 h after light	6.97994	6.37325	7.58663
4 h after dark	8.16539	6.93146	8.8311
8 h after dark	9.044933333333333	8.65376	9.76632
12 h after dark	6.778926666666667	6.61338	7.07521