condition	mean	min	max
4 h after light	8.697793333333333	8.602219999999999	8.85555
8 h after light	8.91209	8.75544	9.00554
12 h after light	9.12774	8.829089999999999	9.39235
4 h after dark	9.26046	9.00954	9.52783
8 h after dark	9.312723333333333	9.25557	9.422889999999999
12 h after dark	9.138776666666667	9.049489999999999	9.22768