Japanese whiskey exports have increased significantly in the past decade, reaching 56 billion yen last year, a 22-fold increase from 10 years ago. The average selling price of whiskey at specialty stores has also increased by about 20% compared to five years ago. The rise in demand is driven by high-quality whiskey, with prices of popular brands like Suntory 'Hibiki' and 'Yamazaki' increasing by 40% and 25% respectively in the past five years.