Lies, damn lies and statistics ...
"... between 2012 and 2014" - is that "between" ie neither 2012 or 2014 but 2013 only?
Or is it for 'two years' (paragraph one of text)?
Or 'three years' (paragraph one of quoted report)?
Methinks confusion reigns.
Whatever, it's 700k individual phone numbers - that's grandiose super-slurpage which rates (on an A-Z scale) about 'why?'