condition	mean	min	max
4 h after light	18.06755	15.8547	20.2804
8 h after light	6.06008	5.8327	6.28746
12 h after light	11.4367	11.1197	11.7537
4 h after dark	52.3601	48.7591	55.9611
8 h after dark	50.91585	50.6149	51.2168
12 h after dark	31.728699999999996	30.3417	33.1157