A sample of adult haemoglobin was examined to find its oxygen saturation. All the other variables were kept constant. At a partial pressure of $0\,\text{kPa}$, the saturation was $0\%$. The saturation rose to $97\%$ at a partial pressure of $14\,\text{kPa}$. Which row gives possible percentage saturation values for haemoglobin at intermediate partial pressures?