Photo taken on March 27, 2013 shows a private vegetable and fruit stand in old town of Havana, Cuba. Since Cuba permitted the existence of small private businesses in 2010, the number of individual businessmen has reached over 400 thousand, mainly in restaurant, rental housing, transportation, food processing and marketing among the 178 permitted trades. (Xinhua/Joaquin Hernandez)

Photo taken on March 27, 2013 shows vendors duplicating keys in old town of Havana, Cuba. Since Cuba permitted the existence of small private businesses in 2010, the number of individual businessmen has reached over 400 thousand, mainly in restaurant, rental housing, transportation, food processing and marketing among the 178 permitted trades. (Xinhua/Joaquin Hernandez)

Photo taken on March 27, 2013 shows a fine art shop in old town of Havana, Cuba. Since Cuba permitted the existence of small private businesses in 2010, the number of individual businessmen has reached over 400 thousand, mainly in restaurant, rental housing, transportation, food processing and marketing among the 178 permitted trades. (Xinhua/Joaquin Hernandez)

Photo taken on March 27, 2013 shows a watch repair shop in old town of Havana, Cuba. Since Cuba permitted the existence of small private businesses in 2010, the number of individual businessmen has reached over 400 thousand, mainly in restaurant, rental housing, transportation, food processing and marketing among the 178 permitted trades. (Xinhua/Joaquin Hernandez)

Photo taken on March 27, 2013 shows a private restaurant in old town of Havana, Cuba. Since Cuba permitted the existence of small private businesses in 2010, the number of individual businessmen has reached over 400 thousand, mainly in restaurant, rental housing, transportation, food processing and marketing among the 178 permitted trades. (Xinhua/Joaquin Hernandez)

Photo taken on March 27, 2013 shows a nail shop in old town of Havana, Cuba. Since Cuba permitted the existence of small private businesses in 2010, the number of individual businessmen has reached over 400 thousand, mainly in restaurant, rental housing, transportation, food processing and marketing among the 178 permitted trades. (Xinhua/Joaquin Hernandez)

Photo taken on March 27, 2013 shows a private flower shop in old town of Havana, Cuba. Since Cuba permitted the existence of small private businesses in 2010, the number of individual businessmen has reached over 400 thousand, mainly in restaurant, rental housing, transportation, food processing and marketing among the 178 permitted trades. (Xinhua/Joaquin Hernandez)