Set value to 0/0 for internships without period_places for particular period
Set value to 0/0 for internships without period_places for particular period

uclouvain/osis,uclouvain/osis_louvain,uclouvain/osis,uclouvain/osis_louvain,uclouvain/OSIS-Louvain,uclouvain/OSIS-Louvain,uclouvain/osis_louvain,uclouvain/OSIS-Louvain,uclouvain/osis,uclouvain/osis