condition mean min max 4 h after light 227.0703795 224.665271 229.475488 8 h after light 214.088346 198.56002 229.616672 12 h after light 227.8807425 191.519254 264.242231 4 h after dark 224.0047185 220.623373 227.386064 8 h after dark 303.0549595 274.990812 331.119107 12 h after dark 206.341158 206.341158 206.341158