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 0.029382 0.0 0.058764 4 h after dark 0.0566965 0.0 0.113393 8 h after dark 0.02842765 0.0 0.0568553 12 h after dark 0.02819755 0.0 0.0563951