"During the summer, Emilia Romagna, Campania and Tuscany alone count for almost 58% of the tax free shopping in the country. Thanks to the success of the Adriatic Riviera, the Amalfi Coast and the Versilia they continue to cash in on foreign tourists. In these areas, tax free sales are mostly driven by the Russian purchases, with average receipts of between 440 and 1,000 Euros."
http://m.tourism-review.com/italy-seaside-boom-in-tax-free-shopping--news4230