condition	mean	min	max
4 h after light	8.46356	8.05623	8.87089
8 h after light	6.0393799999999995	4.79146	7.2873
12 h after light	7.361700000000001	7.29006	7.43334
4 h after dark	7.923385	7.8711	7.97567
8 h after dark	6.6228	5.42572	7.81988
12 h after dark	7.21615	6.33	8.1023