I recently cashed out a Canada Savings Bond I had from when I was a kid and I after taking into account inflation I made about $8 while the government had my money for 20+ years.
Your Canadian bond was probably priced in Canadian dollars, which have a near zero risk of default (Canada can just print more dollars to pay it), so the pricing of these bonds should be such that it is largely inflation plus a vanishingly small premium for the black swan default.
$8 sounds about right.
Enough profit to buy a shitty meal at Tim's.