Graph/chart/map and citation

I couldnt find a chart or graph for my topic, but i have found statistics. According to statistics provided by the American Academy of Family Physicians, as many as six of every 100 people in the United States have winter depression or Seasonal Affective Disorder (SAD). Another 10% to 20% may experience some mild form of SAD. I have also found that SAD is mostly found in women more than men, although it is also found in some children and teenagers. SAD usually doesnt show until at least 20 years of age and decreases as you progress to get older. SAD is most common to people who live in northern geographic regions.