condition mean min max 2 h after light 0.0 0.0 0.0 6 h after light 0.018696 0.0 0.112176 10 h after light 0.038517333333333334 0.0 0.231104 14 h after light 0.0 0.0 0.0 18 h after light 0.0 0.0 0.0 2 h after dark 0.0 0.0 0.0