condition mean min max 0 h after light 0.0 0.0 0.0 4 h after light 0.368162 0.362106 0.374218 8 h after light 0.0 0.0 0.0 4 h after dark 0.1810645 0.0 0.362129 8 h after dark 0.36323700000000003 0.361713 0.364761 12 h after dark 0.0 0.0 0.0