15 years ago, Iceland had the world's highest rate of antidepressant consumption - 71 out of every 1,000 people consumed antidepressants daily. By 2015, that trend hadn't changed. In fact, the rate of consumption among Icelanders actually increased to 130 per 1,000 people. Some experts attribute this to a weakening of social taboos while others point to the lingering impact of the country's financial crisis when its three largest bank failed. Australia comes second for antidepressant consumption while Portugal rounds off the top three.