condition mean min max 4 h after light 0.8438635000000001 0.840582 0.847145 8 h after light 0.4963835 0.306411 0.686356 12 h after light 0.0 0.0 0.0 4 h after dark 0.861851 0.732677 0.991025 8 h after dark 0.669902 0.611941 0.727863 12 h after dark 0.646769 0.481964 0.811574