condition	mean	min	max
0 h after light	7.6952799999999995	7.36755	8.02301
4 h after light	4.72114	4.56429	4.87799
8 h after light	4.962680000000001	4.83211	5.09325
4 h after dark	6.80824	6.13084	7.48564
8 h after dark	5.224959999999999	4.93854	5.51138
12 h after dark	6.63244	6.27625	6.98863