condition mean min max 4 h after light 0.756623 0.700714 0.812532 8 h after light 0.5997505000000001 0.580192 0.619309 12 h after light 0.5239404999999999 0.472842 0.575039 4 h after dark 0.9640656666666666 0.88506 1.02354 8 h after dark 0.947561 0.708501 1.18614 12 h after dark 0.5965373333333334 0.514481 0.649576