condition	mean	min	max
4 h after light	8.906185	6.77917	11.0332
8 h after light	8.113545	7.86713	8.35996
12 h after light	9.12524	8.08558	10.1649
4 h after dark	17.668133333333333	16.8225	18.8943
8 h after dark	14.7768	14.542	15.1589
12 h after dark	14.982	13.755	15.6045