We don't actually have data on how common it is. Most people faced with that situation will just plead guilty.
What we do know, and what we regularly hear from duty counsel, is that they will not participate in guilty pleas where they don't think the facts support that plea. That is very common. You can ask duty counsel how often they have to step back from assisting a person who wants to plead guilty because they don't think the facts support a guilty plea. That happens frequently. We know this pressure is operating in our justice system. We know that people are just pleading out.
There are instances where people will insist on their right to a fair trial. They say, “No, I did not do it, and I will sit here and wait for my trial even though it will mean more time behind bars than I am likely to be sentenced to.” But that's extraordinary. It should not occur.