condition	mean	min	max
4 h after light	6.23825	6.06619	6.348990000000001
8 h after light	6.085943333333333	5.960369999999999	6.2633
12 h after light	6.381586666666667	6.3193	6.41887
4 h after dark	6.303446666666667	6.19568	6.49147
8 h after dark	6.28911	6.1594	6.40866
12 h after dark	6.371783333333333	6.1900699999999995	6.553719999999999