According to most estimates, there are approximately 1.2 million scuba divers world wide.
66% Male
34% Female
Average age is 29
PADI, the world’s largest scuba certification agency, has barely grown over the last 6 years. In 2007 they had 133,562 members and in 2012 they had 135,710 members, less than a 2% increase.
Between 1997 and 2004, the Divers Alert Network reported an annual fatality rate between 11 and 18 deaths per 100,000 members per year.
Sources:
undercurrent.org/UCnow/dive_magazine/2007/HowManyDivers200705.htmlwiki.answers.com/Q/How_many_recreational_scuba_divers_in_the_worldpadi.com/scuba/uploadedFiles/Scuba_Do_not_use_thi...0WW%20Statistics.pdfdiversalertnetwork.org/default.aspx?a=news&id=904