(ShankenNewsDaily) - Impact Databank’s exclusive analysis of the top 10 imported sparkling wines in the U.S. market finds that Italian wines continue to be the biggest volume drivers in this rising segment. Total imported sparkling wine shipments to the U.S. increased 19.7% to 7.65 million cases in 2011. Of the 10 largest imported sparkling wines in the market by volume, half are sourced from Italy. Four of those five—Verdi, Sparkletini, Mionetto and Lunetta—grew by double-digits in 2011, the lone exception being Martini & Rossi, whose U.S. depletions have now slipped by 25% since 2007. Verdi and Sparkletini, imported by Carriage House Imports, continue to thrive on accessible pricing and flavored extensions like Green Apple, Peach and Raspberry. Combined volume for the two Carriage House labels has nearly doubled since 2007, eclipsing 1.5 million cases last year.