condition mean min max 0 h after light 0.0 0.0 0.0 2 h after light 0.0 0.0 0.0 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 0.067107 0.0 0.134214 2 h after dark 0.0 0.0 0.0 4 h after dark 0.113008 0.0 0.226016 8 h after dark 0.1298915 0.127535 0.132248 12 h after dark 0.0 0.0 0.0