condition mean min max 0 h after light 0.083999 0.0 0.167998 4 h after light 0.2135905 0.0 0.427181 8 h after light 0.5878845 0.512121 0.663648 4 h after dark 0.4542305 0.247052 0.661409 8 h after dark 0.4562845 0.412906 0.499663 12 h after dark 0.2066055 0.167473 0.245738