If you expand the file, there are 43 cases for Cuba over the history covered. Each case is denoted by a line in the yaml file, e.g.

Rule Cuba 1969 1977 - Apr lastSun 0:00 1:00 D

Rule Cuba 1969 1971 - Oct lastSun 0:00 0 S

Rule Cuba 1972 1974 - Oct 8 0:00 0 S

Rule Cuba 1975 1977 - Oct lastSun 0:00 0 S

Rule Cuba 1978 only - May 7 0:00 1:00 D