condition mean min max 4 h after light 11.932869 11.106644 12.759094 8 h after light 12.396469 12.001012 12.791926 12 h after light 12.580655499999999 11.821766 13.339545 4 h after dark 14.482838000000001 14.450567 14.515109 8 h after dark 15.267574 12.005846 18.529302 12 h after dark 13.741469 13.741469 13.741469