condition	mean	min	max
4 h after light	7.9608585000000005	7.639624	8.282093
8 h after light	8.011232	7.847117	8.175347
12 h after light	7.5059535	7.16479	7.847117
4 h after dark	7.4206395	6.340593	8.500686
8 h after dark	8.384803	7.847117	8.922489
12 h after dark	7.432545	7.432545	7.432545