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 0.050495 0.0 0.10099 12 h after light 0.0 0.0 0.0 2 h after dark 0.0 0.0 0.0 4 h after dark 0.0939885 0.0 0.187977 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0