condition mean min max 4 h after light 0.6667885 0.628961 0.704616 8 h after light 0.8839954999999999 0.814576 0.953415 12 h after light 0.9917020000000001 0.798904 1.1845 4 h after dark 2.3061949999999998 2.27856 2.33383 8 h after dark 1.720275 1.71475 1.7258 12 h after dark 0.919853 0.848411 0.991295