, the membership of the UNWTO included 156 states,[REF] six associate members (Flemish Community (1997), Puerto Rico (2002), Aruba (1987), Hong Kong (1999), Macau (1981), Madeira (1995)),[REF] and two observers (Holy See (1979), Palestine (1999)).
The United Arab Emirates (UAE) rejoined the Organization in May 2013 , 26 years after having left UNWTO [REF].