condition	mean	min	max
4 h after light	7.7745	7.03112	8.51788
8 h after light	4.223245	3.84273	4.60376
12 h after light	3.80976	3.79305	3.82647
4 h after dark	3.2563	3.07871	3.55491
8 h after dark	4.156476666666666	3.94314	4.52087
12 h after dark	4.338096666666667	4.16236	4.55445