The existence of specific commitments entails other obligations relating, among other things, to the notification of new measures having a significant impact on trade and the prevention of restrictions on international payments and transfers. In addition, the Air Services Annex exempts air duty and service measures directly related to the exercise of these rights. The main task of the secretariats is to provide technical support to the various councils/committees and ministerial conferences, to provide technical assistance to developing countries, to analyse world trade and to explain WTO activities to the public and the media. More than three-quarters of WTO members are developing economies or least developed economies. All WTO agreements include specific provisions, including longer timelines for the implementation of commitments, measures to improve trade opportunities, and assistance in the implementation of global trade promotion services. The Uruguay Round has created new rules for trade in services and intellectual property as well as new dispute resolution procedures. The complete set consists of approximately 30,000 pages, consisting of some thirty separate agreements and commitments (timetables) of individual members in specific areas such as. B lower rates and opening up the market to services. The GATS expressly recognizes the right of members to regulate service delivery by pursuing their own policy objectives. However, the agreement contains provisions to ensure that service rules are managed appropriately, objectively and impartially. The priority of WTOs is to enable smooth, free and predictable trade. This series of meetings and reduced rates would continue, allowing for new GATT provisions in the process. The average tariff rate rose from about 22% when the GATT was first signed in Geneva in 1947, to about 5% until the end of the 1993 Uruguay Cycle, which also negotiated the creation of the WTO.