text: INSERT INTO late_times (name, duration, date_of_late_time) VALUES ('adam', 5, '2020-05-01');
  INSERT INTO late_times (name, duration, date_of_late_time) VALUES ('valaki', 10, '2020-05-01');
  INSERT INTO late_times (name, duration, date_of_late_time) VALUES ('valaki', 5, '2020-05-02');
  INSERT INTO late_times (name, duration, date_of_late_time) VALUES ('adam', 5, '2020-05-02');
  INSERT INTO late_times (name, duration, date_of_late_time) VALUES ('attila', 3, '2020-05-03');