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 .
[['location', 'polo ralph lauren'], ['united states', '140'], ['europe', '31'], ['asia ( a )', '20'], ['total', '191']]
( 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. .

Question: what percentage of factory retail stores as of april 2 , 2011 is asia?
Answer: 10%