Description of node <>

Subject Predicate Object <p>The data collection took place between February and September 2013, simultaneously with the data collection of ESA 2012.</p> <p>The paper questionnaire of the trade margins survey tradehas been sent to companies in the same letter containing the ESA 2012 questionnaire.<br /><br />The units surveyed could also answer to the survey through internet using a downloaded file that they had to fill and&nbsp;then to upload in the secured portal of responses to surveys conducted by INSEE.</p>