The amounts of studies, investments and current expenditures are those carried out during the last financial year ended in 2020, the staff of the establishment is that at 31/12/2020, the information concerning the classification/certification of the establishment concern the year 2020(INSTCLAS, AUTORIS, ISO, ENVOIE, AUT_CERTIF, EFF_ENV, SERV1), the rest of the qualitative data - General information of framework A - relates to the situation of the company at the time of answering the survey (June to October 2021).