An employee checks the stock of liquor at a store. (Photographer: Jack Atley/Bloomberg News)
(Bloomberg Businessweek) -- This was an underwhelming year for St. Patrick’s Day spending, but it remains a spectacular time for Irish whiskey fans. The category is one of the fastest-growing spirits segments in the U.S., with a compound annual growth rate of 13.4% over the past five years, according to IWSR Drinks Market Analysis; domestic whiskey has grown 5.5%, Scotch whisky 0.2%.