https://www.bloomberg.com/news/articles/2017-04-06/czech-koruna-whipsaws-as-central-bank-lifts-currency-cap-chart
origin - http://www.pipiscrew.com/2017/04/czech-koruna-whipsaws-as-central-bank-lifts-currency-cap/ czech-koruna-whipsaws-as-central-bank-lifts-currency-cap