condition mean min max 0 h after light 0.0121689 0.0 0.0243378 2 h after light 0.0 0.0 0.0 4 h after light 0.0588045 0.0 0.117609 8 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 2 h after dark 0.0 0.0 0.0 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0