Investing in boring index funds has produced 20% returns this year. Can't imagine it will happen again next yr but who knows. Actually I had an allocation in Apple which has had a crazy year..up 60% or so to all time highs.
curious, do you count unrealized gains as income as well? I also did some passive index fund investments but I only count cash dividends as actual "income".
The market does sort of concern me right now though. We're sitting at all time highs for the S&P but there's worrying signs everywhere. I don't know how it'll all play out next year, so I might gradually sell some to lock in gains before end of year.