condition mean min max 0 h after light 0.0 0.0 0.0 4 h after light 0.0 0.0 0.0 8 h after light 0.07677835 0.0756847 0.077872 4 h after dark 0.0375662 0.0 0.0751324 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0