The article talks of 94 attempts from 1977 to 1979. We're not told when in 1977 to when in 1979, so that's a minimum of 1 year to a maximum of 3 - in other words, somewhere from 31 to 94 per year.
The "7 suicides verdicts in 10 years" is follow ups on these cases - some people go quickly but you'll find the article tells you that a lot linger; it's not the instant death the person might have hoped for. Some fail the first time and try again. In my view, it emphatically does not imply "seven suicides in 10 years".
The article also mentions that (for privacy reasons) not all events could be tracked / followed up. Cascode - I think you were selectively quoting to help your point
Edit to add "bolding"