Thanks for your comment, Keala. Please let me clarify. It's different time periods. Civil Beat tracked visitor deaths from July 2013 to December 2016, finding 147 visitors died in accidents during that period, nearly one per week. Snorkeling, perhaps unsurprisingly, was by far the most common activity. Here's a link to the first story in that series, which published in January.
http://www.civilbeat.org/2016/01/death-in-paradise-is-all-too-frequent-for-visitors-to-hawaii/