condition mean min max 4 h after light 0.7335375 0.589728 0.877347 8 h after light 0.651456 0.504457 0.798455 12 h after light 0.777245 0.700115 0.854375 4 h after dark 1.280965 1.14224 1.41969 8 h after dark 1.0750045 0.996979 1.15303 12 h after dark 0.9850645 0.955739 1.01439