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, three models of questionnaires were created to take into account these specificities :<br /> - the first questionnaire corresponds to the months of January and July.<br /> - the second one is sent in February, April, June, August, October and December.<br /> - the last one is sent in March, May, September and November.</p>