Think you might need another category. Life as a whole; time in TWI; time recovering from TWI. That's a harder time to quantify. From when one leaves, to the time one stops thinking like a Wayfer, or stops startling at key jargon words that have acquired other meanings; or until one has abandoned unhealthy TWI concepts.
I call the ten years post-TWI the lost years - I was there in body (even doing things that I ought to have enjoyed), but in such a state that my mind was only partly there and I was actually in a state of profound depression. I think my recovery didn't start till about ten years after being kicked out, and that was when I discovered Greasespot Café when I was preparing to crawl back to TWI. After that, it was - what? five years? ten years? - before I think I became a more clear-minded person and got back my enthusiasm for living. If you take that as 20 years (on top of TWI involvement) that's a very big chunk of pie chart.
I thank God for his great protection and for the kind, loving, genuine, patient and helpful, Christians and other people he put in my way in that 20 years or so