As Finland tops the list of the world's happiest countries for the ninth year in a row, Helsinki Mayor Daniel Sozonov shares the secrets to his nation's success. Canada, once in the list's top 10, has dropped down the rankings in the past decade and is now outside the top 20. »»» Subscribe to CBC News to watch more videos: http://bit.ly/1RreYWS For breaking news, video, audio and in-depth coverage: https://www.cbc.ca/news Follow CBC News on TikTok: https://www.tiktok.com/@cbcnews Subscribe to