Cerys' parents, Terry and Julie Potter, were in court in Turkey today to hear a panel of judges hand down guilty verdicts to four men.
Her father told our reporter Kevin Ashford "We couldn't sit back and know that there were still children going on these death traps - and more children were going to get killed."
Two owners and two employees of Marmaris Rafting, the company which ran the excursion Cerys was on when the incident happened in 2010, were found guilty of reckless killing.
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The figures were obtained by Confused.com after Freedom of Information requests to 412 local authorities.
A cloudy night with drizzle in places. Heavier rain and strengthening winds arriving tomorrow afternoon.
Nazar gave up a career as a property developer to become a humanitarian, raising more than £200,000 for good causes around the world.