condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.051793 0.0 0.155379 9 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 3 h after dark 0.0 0.0 0.0 6 h after dark 0.13728433333333334 0.0 0.284397 9 h after dark 0.04798733333333333 0.0 0.143962 12 h after dark 0.0 0.0 0.0