Here's the link to the findings on the Action for Sugar website where you can see the full list of drinks included in their survey:

http://www.actiononsugar.org/News%20Centre/Surveys%20/2016/1...

For comparison, the recommendation from UK scientists is that no more than 5% of daily calories should come from added sugar (approx 7 teaspoons):

http://www.bbc.co.uk/news/health-33551501