condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.0 0.0 0.0 9 h after light 0.0 0.0 0.0 12 h after light 0.03291225 0.0 0.131649 3 h after dark 0.06144493333333333 0.0 0.102694 6 h after dark 0.0 0.0 0.0 9 h after dark 0.08474533333333334 0.0 0.148699 12 h after dark 0.0 0.0 0.0