By the end of its thirteenth session, the Committee and its predecessor, the Sessional Working Group of Governmental Experts, had examined 153 initial reports, 71 second periodic reports and 25 global reports on articles 1 to 15 of the Covenant. This work made it possible to identify many of the problems that may be encountered in implementing the Covenant in a considerable number of States parties representing all the regions of the world and having different political, socio-economic and cultural systems. The reports examined to date have not provided any information in a systematic way on the situation of older persons as regards compliance with the Covenant, apart from information, of varying completeness, on the implementation of article 9 relating to the right to social security.