About £2500 on average. I've been fortunate enough to have very little go wrong with me over the years, but my mum has had cancer about six times and at the end

About £2500 on average. I've been fortunate enough to have very little go wrong with me over the years, but my mum has had cancer about six times and at the end of next month have just completed two years of immunotherapy so I reckon I've had my five grand's worth.