`1` استقراء (استيفاء) البيانات الوطنية المتعلقة بالنشاط، إذا كانت هذه البيانات متاحة كما هو مطلوب في الفقرة 29 أعلاه، وتم جمعها وفقاً لإرشادات الممارسات الجيدة التي وضعها الفريق الحكومي الدولي المعني بتغير المناخ
Recommended international data sources as included in the inventory review resources listed in appendix I Extrapolation (interpolation) methods if the international data sources do not provide data for the year in question, in which case the activity data should be obtained as follows (in order of preference): Extrapolation (interpolation) of national activity data, if these data are available as required in paragraph 29 above, and were collected in accordance with the IPCC good practice guidance Extrapolation (interpolation) of data from recommended international data sources included in the inventory review resources listed in appendix I Extrapolation (interpolation) using drivers or surrogate data from the inventory review resources listed in appendix I Activity data based on appropriate drivers (e.g. activity data per capita) from a cluster of countries following the provisions of paragraphs 35-38 below.