This is a line graph showing the probability of depression for people aged between 16 and 70. As we can see from the graph, the likelihood of depression is very low at age 16, only three people in a thousand. This figure rises dramatically until age 44 where over two percent of the population is depressed. The probability then drops back down as people get older. The rate at age 70 is about the same as 18. In conclusion, middle-aged people are more likely to suffer from depression.