This is a link to Waterway Guide's news with the full text of the 2017 report. We often talk about what they do, so here's a document with some numbers.
https://www.waterwayguide.com/lates...utm_campaign=News&utm_content=News+03-22-2017
https://www.waterwayguide.com/lates...utm_campaign=News&utm_content=News+03-22-2017