case_id,status,closed_duration_days,open_age_days_at_november_10,contacts,notice C01,closed,0,,1,FICTIONAL C02,closed,1,,1,FICTIONAL C03,closed,1,,2,FICTIONAL C04,closed,2,,2,FICTIONAL C05,closed,4,,3,FICTIONAL C06,closed,10,,4,FICTIONAL C07,open,,3,2,FICTIONAL C08,open,,8,3,FICTIONAL