pre_text: table of contents 2022 rugby is a vertical retail format featuring an aspirational lifestyle collection of apparel and accessories for men and women . the brand is characterized by a youthful , preppy attitude which resonates throughout the line and the store experience . in addition to generating sales of our products , our worldwide full-price stores set , reinforce and capitalize on the image of our brands . our stores range in size from approximately 800 to over 38000 square feet . these full-price stores are situated in major upscale street locations and upscale regional malls , generally in large urban markets . we generally lease our stores for initial periods ranging from 5 to 10 years with renewal options . factory retail stores we extend our reach to additional consumer groups through our 191 polo ralph lauren factory stores worldwide . our factory stores are generally located in outlet centers . we generally lease our stores for initial periods ranging from 5 to 10 years with renewal options . during fiscal 2011 , we added 19 new polo ralph lauren factory stores , net , and assumed 2 factory stores in connection with the south korea licensed operations acquisition ( see 201crecent developments 201d for further discussion ) . we operated the following factory retail stores as of april 2 , 2011 : location ralph lauren .
post_text: ( a ) includes japan , south korea , china , hong kong , indonesia , malaysia , the philippines , singapore , taiwan and thailand . 2022 polo ralph lauren domestic factory stores offer selections of our menswear , womenswear , children 2019s apparel , accessories , home furnishings and fragrances . ranging in size from approximately 2500 to 20000 square feet , with an average of approximately 9500 square feet , these stores are principally located in major outlet centers in 37 states and puerto rico . 2022 europe factory stores offer selections of our menswear , womenswear , children 2019s apparel , accessories , home furnishings and fragrances . ranging in size from approximately 2300 to 10500 square feet , with an average of approximately 6000 square feet , these stores are located in 11 countries , principally in major outlet centers . 2022 asia factory stores offer selections of our menswear , womenswear , children 2019s apparel , accessories and fragrances . ranging in size from approximately 1000 to 12000 square feet , with an average of approximately 5000 square feet , these stores are primarily located throughout japan and in or near other major cities within the asia-pacific region , principally in major outlet centers . factory stores obtain products from our suppliers , our product licensing partners and our retail and e-commerce stores . concessions-based shop-within-shops in asia , the terms of trade for shop-within-shops are largely conducted on a concessions basis , whereby inventory continues to be owned by us ( not the department store ) until ultimate sale to the end consumer and the salespeople involved in the sales transaction are generally our employees . as of april 2 , 2011 , we had 510 concessions-based shop-within-shops at approximately 236 retail locations dedicated to our ralph lauren-branded products , primarily in asia , including 178 concessions-based shop-in-shops related to the south korea licensed operations acquisition . the size of our concessions-based shop-within-shops typically ranges from approximately 180 to 3600 square feet . we share in the cost of these shop-within-shops with our department store partners. .
table: Location Polo   Ralph Lauren
table: United States 140
table: Europe 31
table: Asia <sup>(a)</sup> 20
table: Total 191
question: Analyse this data from a financial earnings document. what percentage of factory retail stores as of april 2 , 2011 is europe?