Description of node <>

Subject Predicate Object <p>The survey is conducted every month but not all questions are asked every month.</p> <p>In practice, several models of questionnaires were created to take into account these specificities :<br /> - the first questionnaire corresponds to the months of January, April, July and October.  In 2020, the questionnaire of the January, has been punctually modified to collect information on BREXIT's effect;<br /> - the second one is sent in other months.</p>