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 0.030356 0.0 0.121424 3 h after dark 0.0 0.0 0.0 6 h after dark 0.043367333333333334 0.0 0.130102 9 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0