condition	mean	min	max
4 h after light	8.186245	6.70171	9.67078
8 h after light	7.333254999999999	6.7894	7.87711
12 h after light	7.860745	7.01356	8.70793
4 h after dark	7.638986666666667	7.45845	7.98498
8 h after dark	8.085243333333334	7.75749	8.32252
12 h after dark	7.868503333333334	7.17483	8.37554