IIRC your figures excluded cash interest/dividends? And often cash earns more than dividends (your AIM charts differ to mine in that my cash values show progressively upward slopes whilst yours are generally flat-lines).
I still hold CHY to this day by your lead. I know you moved out of that due to its return of capital and high fees - but the rewards have continued to be good enough to more than compensate.
An extract from that web page is most informative/instructive IMO :
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